GCSE Maths Formulae (copy)

Area of a rectangle

Area of a rectangle

length x width

Area of a parallelogram

height x base

Area of a triangle

(height x base)/2

Area of a trapezium

1/2(a+b)h

Volume of a prism

Volume of a cuboid

length x width x height

Volume of a cylinder

πr² x height

Volume of a pyramid

1/3 x area of base x height

Circumference of a circle

• 2πr

  OR

• πd

Area of a circle

πr²

Speed

Speed=distance/time

Density

Density=mass/volume

Pressure

Pressure=force/area

Pythagoras’ Theorem

a²+b²=c²

Trigonometric Ratios

• Sinθ° = opp/hyp

• Cosθ° = adj/hyp

• Tanθ° = opp/adj

Sine Rule

a/sinA =b/sinB = c/sinC

Cosine Rule

a² = b²+c² - 2bc cosA

Trigonometric Area of a Triangle

(1/2)ab sinC

Quadratic Equation

x =( -b±√(b²-4ac))/2a