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Relation between the side lengths and angles of a spherical triangle
In spherical trigonometry, the half-side formula relates the angles and lengths of the sides of spherical triangles, which are triangles drawn on the
Half-side_formula
Relates the tangent of half of an angle to trigonometric functions of the entire angle
trigonometry, tangent half-angle formulas relate the tangent of half of an angle to trigonometric functions of the entire angle. The tangent of half an angle is
Tangent_half-angle_formula
Generalization of Pythagorean theorem
of cosines (also known as the cosine formula or cosine rule or Al-Kashi’s theorem) relates the lengths of the sides of a triangle to the cosine of one of
Law_of_cosines
Problem of finding unknown lengths and angles of a triangle
law of sines. Among other relationships that may be useful are the half-side formula and Napier's analogies: tan 1 2 c cos 1 2 ( α − β ) = tan 1
Solution_of_triangles
Ongoing Formula One season
2026 FIA Formula One World Championship Previous 2025 Next 2027 Races by country Races by venue Support series: Formula 2 Championship FIA Formula 3 Championship
2026 Formula One World Championship
2026_Formula_One_World_Championship
trigonometric values (values of sine and cosine expressed in surds) Exsecant Half-side formula Hyperbolic function Laws for solution of triangles: Law of cosines
List of trigonometric identities
List_of_trigonometric_identities
Property of all triangles on a Euclidean plane
sines (sometimes called the sine formula or sine rule) is a mathematical equation relating the lengths of the sides of any triangle to the sines of its
Law_of_sines
triangle. Other frequently used formulas for the area of a triangle use trigonometry, side lengths (Heron's formula), vectors, coordinates, line integrals
Area_of_a_triangle
Relates tangents of two angles of a triangle and the lengths of the opposing sides
\beta }}} (see tangent half-angle formula). The law of tangents can be used to compute the angles of a triangle in which two sides a and b and the enclosed
Law_of_tangents
Geometry of the surface of a sphere
Spherical conic Spherical distance Spherical polyhedron Spherics Half-side formula Lénárt sphere Versor In this context the word "sphere" refers only
Spherical_geometry
Overview of and topical guide to trigonometry
arcseconds, published in the late 1500s Spherical trigonometry Half-side formula Haversine formula mnemonics in trigonometry All Students Take Calculus List
Outline_of_trigonometry
Mathematical relation in spherical triangles
published in Latin translation annotated by Regiomontanus in 1537. Half-side formula Hyperbolic law of cosines Solution of triangles Spherical law of sines
Spherical_law_of_cosines
Auto racing series
Formula DRIFT (also known as Formula D or FD) is an American premier professional drifting series that was co-founded by Jim Liaw and Ryan Sage in 2003
Formula_D
Motorsport racing series
2025–26 FIA Formula E World Championship Manufacturers' Champion: Porsche Previous 2024–25 Next 2026–27 The 2025–26 ABB FIA Formula E World Championship
2025–26 Formula E World Championship
2025–26_Formula_E_World_Championship
Concept in geometry
and because the sequence tends to a circle, the corresponding formula—that the area is half the circumference times the radius—namely, A = 1/2 × 2πr ×
Area_of_a_circle
Motorsport championship held worldwide
Formula One (F1) is the highest class of worldwide racing for open-wheel, single-seater formula racing cars run by the Formula One Group and sanctioned
Formula_One
76th Formula One season
by venue Support series: Formula 2 Championship FIA Formula 3 Championship F1 Academy Porsche Supercup The 2025 FIA Formula One World Championship was
2025 Formula One World Championship
2025_Formula_One_World_Championship
75th Formula One season
by venue Support series: Formula 2 Championship FIA Formula 3 Championship F1 Academy Porsche Supercup The 2024 FIA Formula One World Championship was
2024 Formula One World Championship
2024_Formula_One_World_Championship
Triangle area in terms of side lengths
In geometry, Heron's formula (or Hero's formula) gives the area of a triangle in terms of the three side lengths a , {\displaystyle a,} b , {\displaystyle
Heron's_formula
Formula for the great-circle distance between two points on a sphere
is a special case of a more general formula in spherical trigonometry, the law of haversines, that relates the sides and angles of spherical triangles.
Haversine_formula
Single-seater racing championship
Formula One team. The championship's first season featured eight rounds on the circuits across Europe with half of them in Italy. Like other Formula Regional
Formula Regional European Championship
Formula_Regional_European_Championship
Formula relating the area of a cyclic quadrilateral to its side lengths
the lengths of the sides. Its generalized version, Bretschneider's formula, can be used with non-cyclic quadrilateral. Heron's formula can be thought as
Brahmagupta's_formula
Size of a two-dimensional surface
equals half the radius r. This can be seen from the area formula πr2 and the circumference formula 2πr. The area of a regular polygon is half its perimeter
Area
38th season of FIA Formula One motor racing
Lauda's five, but the Austrian eventually prevailed by half a point – the smallest margin in Formula One history. It was Lauda's third title, but his first
1984 Formula One World Championship
1984_Formula_One_World_Championship
60th season of the FIA Formula One World Championship
Supercup Formula BMW Europe The 2009 FIA Formula One World Championship was the 63rd season of FIA Formula One motor racing. It featured the 60th Formula One
2009 Formula One World Championship
2009_Formula_One_World_Championship
Motor racing competition
2025 Formula Regional European Championship by Alpine Drivers' Champion: Freddie Slater Rookie Champion: Dion Gowda Teams' Champion: R-ace GP Previous
2025 Formula Regional European Championship
2025_Formula_Regional_European_Championship
58th season of the FIA Formula One World Championship
The 2007 FIA Formula One World Championship was the 61st season of FIA Formula One motor racing. It began on 18 March and ended on 21 October after seventeen
2007 Formula One World Championship
2007_Formula_One_World_Championship
French racing driver (1989–2015)
Formula Renault 2.0 Championship with SG Formula. After winning the 2008 Masters of Formula 3, Bianchi won the Formula 3 Euro Series in 2009 with ART. He then
Jules_Bianchi
Half of the sum of side lengths of a polygon
polygon is half its perimeter. Although it has such a simple derivation from the perimeter, the semiperimeter appears frequently enough in formulas for triangles
Semiperimeter
Electric car racing season
2023–24 FIA Formula E World Championship World Drivers' Champion: Pascal Wehrlein World Teams' Champion: Jaguar TCS Racing Manufacturers' Trophy winner:
2023–24 Formula E World Championship
2023–24_Formula_E_World_Championship
Complex exponential in terms of sine and cosine
Euler's formula, named after Leonhard Euler, is a mathematical formula in complex analysis that establishes the fundamental relationship between the trigonometric
Euler's_formula
68th season of FIA Formula One World Championship
Support series: Formula 2 Championship GP3 Series Porsche Supercup The 2017 FIA Formula One World Championship was the 71st season of Formula One motor racing
2017 Formula One World Championship
2017_Formula_One_World_Championship
74th season of Formula One
Races by venue Support series: Formula 2 Championship FIA Formula 3 Championship Porsche Supercup The 2023 FIA Formula One World Championship was a motor
2023 Formula One World Championship
2023_Formula_One_World_Championship
Motor racing championship
GP3 Series Porsche Supercup Formula BMW Europe The 2010 FIA Formula One World Championship was the 64th season of FIA Formula One motor racing. The season's
2010 Formula One World Championship
2010_Formula_One_World_Championship
Motor racing championship
Supercup The 2013 FIA Formula One World Championship was the 67th season of FIA Formula One motor racing. It featured the 64th FIA Formula One World Championship
2013 Formula One World Championship
2013_Formula_One_World_Championship
Integer side lengths of a right triangle
has side lengths satisfying the formula a 2 + b 2 = c 2 {\displaystyle a^{2}+b^{2}=c^{2}} ; thus, Pythagorean triples describe the three integer side lengths
Pythagorean_triple
Monégasque racing driver (born 1997)
a Monégasque racing driver who competes in Formula One for Ferrari. Leclerc was runner-up in the Formula One World Drivers' Championship in 2022 with
Charles_Leclerc
Polynomial equation of degree two
0 Divide each side by a, the coefficient of the squared term. Subtract the constant term c/a from both sides. Add the square of one-half of b/a, the coefficient
Quadratic_equation
55th season of FIA Formula One racing
venue Support series: Formula 3000 Porsche Supercup The 2001 FIA Formula One World Championship was the 55th season of FIA Formula One motor racing. It
2001 Formula One World Championship
2001_Formula_One_World_Championship
54th season of FIA Formula One motor racing
venue Support series: Formula 3000 Porsche Supercup The 2000 FIA Formula One World Championship was the 54th season of FIA Formula One motor racing. It
2000 Formula One World Championship
2000_Formula_One_World_Championship
New Zealand racing driver (born 2002)
(born 11 February 2002) is a New Zealand racing driver who competes in Formula One for Racing Bulls. Born in Hastings and raised in Pukekohe, Lawson began
Liam_Lawson
73rd season of Formula One
Races by venue Support series: Formula 2 Championship FIA Formula 3 Championship Porsche Supercup W Series The 2022 FIA Formula One World Championship was
2022 Formula One World Championship
2022_Formula_One_World_Championship
Numerical computation of special functions
In mathematics, a reflection formula or reflection relation for a function f is a relationship between f(a − x) and f(x). It is a special case of a functional
Reflection_formula
45th season of FIA Formula One motor racing
venue The 1991 FIA Formula One World Championship was the 45th season of FIA Formula One motor racing and the 42nd season of the Formula One World Championship
1991 Formula One World Championship
1991_Formula_One_World_Championship
Motor racing championship
Supercup The 2015 FIA Formula One World Championship was a motor racing championship for Formula One cars. It was the 66th Formula One World Championship
2015 Formula One World Championship
2015_Formula_One_World_Championship
Shape with three sides
\gamma .} Heron's formula, named after Heron of Alexandria, is a formula for finding the area of a triangle from the lengths of its sides a {\displaystyle
Triangle
American television sitcom (2003–2015)
7/10. The website's consensus reads: "Two and a Half Men's inaugural season rises above its sitcom formula with a rapid-fire clip of bawdy quips as well
Two_and_a_Half_Men
Single-Seater Racing Championship
The FIA Formula 3 Championship (FIA F3) is a third-tier international single-seater racing championship organised by the Fédération Internationale de
FIA_Formula_3_Championship
British racing driver (born 1998)
1998) is a British racing driver who competes in Formula One for Mercedes. Russell has won seven Formula One Grands Prix across eight seasons. Born and
George Russell (racing driver)
George_Russell_(racing_driver)
Fundamental trigonometric functions
is the sum of two squared legs of a right triangle. Dividing the formula on both sides with squared hypotenuse resulting in the Pythagorean trigonometric
Sine_and_cosine
outline of Formula One engines, also called Formula One power units since the hybrid era starting in 2014. Since its inception in 1947, Formula One has used
Formula_One_engines
Motor racing championship
Supercup The 2012 FIA Formula One World Championship was the 66th season of FIA Formula One motor racing. It featured the 63rd FIA Formula One World Championship
2012 Formula One World Championship
2012_Formula_One_World_Championship
French racing driver (1996–2019)
following an accident during the feature race of the 2019 Spa-Francorchamps Formula 2 round at the Circuit de Spa-Francorchamps. Born in Lyon, Hubert began
Anthoine_Hubert
Board game
Formula D (originally published and still also known as Formula Dé) is a board game that recreates formula racing (F1, CART, IRL). It was designed by Eric
Formula_D_(board_game)
Dutch and Belgian racing driver (born 1997)
driver who competes under the Dutch flag in Formula One for Red Bull Racing. Verstappen has won four Formula One World Drivers' Championship titles, which
Max_Verstappen
Theorem: (cos x + i sin x)^n = cos nx + i sin nx
abbreviated to cis x. The formula is important because it connects complex numbers and trigonometry. By expanding the left hand side and then comparing the
De_Moivre's_formula
Austrian racing driver (1949–2019)
aviation entrepreneur, who competed in Formula One from 1971 to 1979 and from 1982 to 1985. Lauda won three Formula One World Drivers' Championship titles
Niki_Lauda
Triangle with at least two sides congruent
formula for the area, half the product of the base and side, Vasily Vasilievich Struve championed the view that they used the correct formula, half the
Isosceles_triangle
French racing driver (born 1955)
motorsport executive, who competed in Formula One from 1980 to 1993. Nicknamed "the Professor", Prost won four Formula One World Drivers' Championship titles
Alain_Prost
57th season of FIA Formula One motor racing
venue Support series: Formula 3000 Porsche Supercup The 2003 FIA Formula One World Championship was the 57th season of FIA Formula One motor racing. It
2003 Formula One World Championship
2003_Formula_One_World_Championship
Characterizes spherical triangles with fixed base and area
A} and B , {\displaystyle B,} respectively. As one analog of the planar formula area = 1 2 base ⋅ height {\displaystyle {\text{area}}={\tfrac {1}{2}}\
Lexell's_theorem
French racing driver (1952–1987)
offshore powerboat racer, who competed in Formula One from 1978 to 1982. Pironi was runner-up in the Formula One World Drivers' Championship in 1982 with
Didier_Pironi
29th season of FIA Formula One motor racing
1975 Formula One season Drivers' Champion: Niki Lauda Constructors' Champion: Ferrari Previous 1974 Next 1976 Races by country Races by venue The 1975
1975_Formula_One_season
34th season of FIA Formula One motor racing
1980 Formula One season Drivers' Champion: Alan Jones Constructors' Champion: Williams-Ford Previous 1979 Next 1981 Races by country Races by venue The
1980_Formula_One_season
Formula whose values are the prime numbers
In number theory, a formula for primes is a formula that outputs prime numbers. Such formulas for calculating primes do exist; however, they are computationally
Formula_for_primes
36th season of FIA Formula One motor racing
1982 FIA Formula One World Championship Drivers' Champion: Keke Rosberg Constructors' Champion: Ferrari Previous 1981 Next 1983 Races by country Races
1982 Formula One World Championship
1982_Formula_One_World_Championship
Racing eSports Series
The 2025 Formula One Sim Racing World Championship was an esports competition for Formula One which was the eighth season of the Formula One Esports Series
2025 F1 Sim Racing World Championship
2025_F1_Sim_Racing_World_Championship
Formula One, the highest class of open-wheel, single-seater formula race cars sanctioned by the Fédération Internationale de l'Automobile (FIA), can be
List of Formula One broadcasters
List_of_Formula_One_broadcasters
Finnish racing driver (born 1968)
former racing driver who competed in Formula One from 1991 to 2001. Nicknamed "the Flying Finn", Häkkinen won two Formula One World Drivers' Championship titles
Mika_Häkkinen
49th season of FIA Formula One motor racing
Supercup The 1995 FIA Formula One World Championship was the 49th season of FIA Formula One motor racing. It featured the 1995 Formula One World Championship
1995 Formula One World Championship
1995_Formula_One_World_Championship
Convex quadrilateral with at least one pair of parallel sides
parallel sides has shrunk to a point (say a = 0), this formula reduces to Heron's formula for the area of a triangle. Another equivalent formula for the
Trapezoid
Infinite product converging to 2/π
repeated use of the half-angle formula from trigonometry leads to a generalized formula, discovered by Leonhard Euler, that has Viète's formula as a special
Viète's_formula
British racing driver (1947–1993)
driver and broadcaster who competed in Formula One from 1973 to 1979. Nicknamed "the Shunt", Hunt won the Formula One World Drivers' Championship in 1976
James_Hunt
Motor racing championship held in 2022
2022 FIA Formula 3 Championship Drivers' Champion: Victor Martins Teams' Champion: Prema Racing Previous 2021 Next 2023 Parent series: Formula One World
2022 FIA Formula 3 Championship
2022_FIA_Formula_3_Championship
Formula One racing team
Bull or RBR, is a Formula One racing team, competing under an Austrian racing licence and based in England. It is one of two Formula One teams owned by
Red_Bull_Racing
Graphic representation of a molecular structure
The structural formula of a chemical compound is a graphic representation of the molecular structure (determined by structural chemistry methods), showing
Structural_formula
42nd season of FIA Formula One motor racing
venue The 1988 FIA Formula One World Championship was the 42nd season of FIA Formula One motor racing. It featured the 1988 Formula One World Championship
1988 Formula One World Championship
1988_Formula_One_World_Championship
British businessman and motorsport executive (1942–2021)
several years in Formula Two and Formula Three. Williams purchased a Brabham Formula One chassis, which Courage drove throughout the 1969 Formula One season
Frank_Williams_(Formula_One)
Japanese open wheel motor racing
2023 Super Formula Championship Drivers' Champion: Ritomo Miyata Teams' Champion: Team Mugen Rookie of the Year: Liam Lawson Previous 2022 Next 2024 Support
2023 Super Formula Championship
2023_Super_Formula_Championship
39th season of FIA Formula One motor racing
venue The 1985 FIA Formula One World Championship was the 39th season of FIA Formula One motor racing. It featured the 1985 Formula One World Championship
1985 Formula One World Championship
1985_Formula_One_World_Championship
"International Formula" was initially known variously as Formula A, Formula I, or Formula 1 with the corresponding "Voiturette" formula being titled Formula B, Formula
History_of_Formula_One
Segment from the center of a polygon to the midpoint of one of its sides
any regular n {\displaystyle n} -sided polygon of side length a {\displaystyle a} according to the following formula, which also states that the area
Apothem
Bet sizing formula for long-term growth
In finance, the Kelly criterion (or Kelly strategy or Kelly bet) is a formula for risk allocation with the sizing a sequence of bets by maximizing the
Kelly_criterion
21st season of FIA Formula One motor racing
1967 Formula One season Drivers' Champion: Denny Hulme International Cup Champion: Brabham-Repco Previous 1966 Next 1968 Races by country Races by venue
1967_Formula_One_season
Extension of the factorial function
for all positive integer values of n {\displaystyle n} . The simple formula for the factorial, x ! = 1 ⋅ 2 ⋅ 3 ⋯ x {\displaystyle x!=1\cdot 2\cdot
Gamma_function
Reciprocating internal combustion engine
Corporation organisation from 2022) for use in Formula One. The engines have been in use since the 2015 Formula One season, initially run by the then newly
Honda V6 hybrid Formula One power unit
Honda_V6_hybrid_Formula_One_power_unit
Trigonometric relation between sides and angles of a triangle
In trigonometry, Mollweide's formula is a pair of relationships between sides and angles in a triangle. A variant of one of the expressions in more geometrical
Mollweide's_formula
Relation between sides of a right triangle
{\theta }=0} , and the formula reduces to the usual Pythagorean theorem. At any selected angle of a general triangle of sides a, b, c, inscribe an isosceles
Pythagorean_theorem
French racing driver (1944–1973)
who competed in Formula One from 1969 to 1973. Cevert won the 1971 United States Grand Prix with Tyrrell. Cevert competed in Formula One for Tecno and
François_Cevert
Australian racing driver (born 1989)
regional Formula Ford championship. He won his first title at the 2008 Formula Renault 2.0 WEC with SG Formula, before winning the 2009 British Formula 3 Championship
Daniel_Ricciardo
48th season of FIA Formula One motor racing
Supercup The 1994 FIA Formula One World Championship was the 48th season of FIA Formula One motor racing. It featured the 1994 Formula One World Championship
1994 Formula One World Championship
1994_Formula_One_World_Championship
50th season of FIA Formula One motor racing
1996 FIA Formula One World Championship Drivers' Champion: Damon Hill Constructors' Champion: Williams-Renault Previous 1995 Next 1997 Races by country
1996 Formula One World Championship
1996_Formula_One_World_Championship
British racing driver (born 1985)
a British racing driver who competes in Formula One for Ferrari. Hamilton has won a joint-record seven Formula One World Drivers' Championship titles—tied
Lewis_Hamilton
Formula in calculus
In calculus, the chain rule is a formula that expresses the derivative of the composition of two differentiable functions z and y in terms of the derivatives
Chain_rule
German racing driver (born 1969)
racing driver who competed in Formula One from 1991 to 2006 and from 2010 to 2012. Schumacher won a record-setting seven Formula One World Drivers' Championship
Michael_Schumacher
18th season of FIA Formula One motor racing
1964 Formula One season Drivers' Champion: John Surtees International Cup Champion: Ferrari Previous 1963 Next 1965 Races by country Races by venue The
1964_Formula_One_season
German racing driver (born 1987)
is a German former racing driver who competed in Formula One from 2007 to 2022. Vettel won four Formula One World Drivers' Championship titles, which he
Sebastian_Vettel
Indian film family
Indian cinema in the 1970s, transforming and reinventing the Bollywood formula, pioneering the Bollywood blockbuster format, and pioneering genres such
Salim_Khan_family
Australian racing driver (born 1976)
broadcaster, and driver manager who competed in Formula One from 2002 to 2013. Webber won nine Formula One Grands Prix across twelve seasons. In endurance
Mark_Webber_(racing_driver)
44th season of FIA Formula One motor racing
venue The 1990 FIA Formula One World Championship was the 44th season of FIA Formula One motor racing. It featured the 1990 Formula One World Championship
1990 Formula One World Championship
1990_Formula_One_World_Championship
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