# Shared Flashcard Set

## Details

Formulas
Maths GCSE
25
Mathematics
01/27/2017

Term
 Percentage (%) Change
Definition
 change           __________  X100 original
Term
 Area of a Rectangle
Definition
 Length x Width
Term
 Area of a Parallelogram
Definition
 Base x Height
Term
 Area of a Triangle
Definition
 0.5 x Base x Height or 0.5 x a x b x SinC
Term
 Area of a Trapezium
Definition
 0.5 x (a+b) x Height
Term
 Circumference of a Circle
Definition
 Pi x Diameter
Term
 Area of a Circle
Definition
Term
 Pythagoras Theorem
Definition
 a2 + b2 + c2
Term
 Trigonometric Ratios
Definition
 SOH CAH TOA where S = Sin C = Cos T = Tan O = Opposite H = Hypotenuse A = Adjacent
Term
Definition
 x = -b ±√(b2-4xaxc)        _____________        2a
Term
 Volume of Cuboid
Definition
 Length x Width x Height
Term
 Volume of Prism
Definition
 Area of Cross Section x Length
Term
 Volume of Cylinder
Definition
Term
 Volume of Pyramid
Definition
 1/3 x Area of Base x Height
Term
 Compound Measures - Speed
Definition
 Speed = Distance              ________             Time
Term
 Compound Measures - Density
Definition
 Density = Mass                 ________                Volume
Term
 Compound Measures - Pressure
Definition
 Pressure = Force                  _______                 Area
Term
 Sine Rule - Length
Definition
 a   =   b   =   c _____ _____ _____ SinA    SinB    SinC
Term
 Sine Rule - Angle
Definition
 SinA    SinB    SinC _____ _____ _____  a   =   b   =   c
Term
 Cosine Rule - Length
Definition
 a2 = b2 + c2 - (2xbxcxCosA)
Term
 Cosine Rule - Angle
Definition
 CosA = b2 + c2 - a2             __________           2 x b x c
Term
 Arc Length
Definition
 θ                             _____ x 2 x Pi x Radius 360
Term
 Area of a Segment
Definition
 θ                             _____    x Pi x Radius3 360
Term
 Polygon - Interior angles
Definition
 180 - 360          ____          n   where n is the number of sides
Term
 Polygon - Exterior angles
Definition
 n = 360       ____       80   where n is the number of sides
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