Calculator maths formulas

area of a rectangle

l x w

area of a triangle

½b x h

area of a parallelogram

b x h

area of a trapezium

a+b/2 x h

circumference of a circle

π x d

area of a circle

πr²

volume of a prism

area of cross section x h

volume of a cylinder

h x πr²

volume of a pyramid

1/3area of base x h

Pythagoras theorem

a² + b² = c²

SOH

sinx = opp/hyp

CAH

cosx = adj/hyp

TOA

tanx = opp/adj

sine rule

a/SineA = b/SinB = c/SinC

cosine rule

a² = b² + c² - 2bc cosA

Area of a triangle (trigonometry)

A = ½ab sinC

quadratic formula