Created by Phoenix Featherstone
4 months ago


Question  Answer 
area of a regular triangle  1/2 x base x height 
Pythagoras theorum  a2 + b2 = c2 
area of an irregular triangle  1/2absinC 1/2bcsinA 1/2acsinB 
cosine rule for lengths  a2 = b2 + c2  2bccosA 
sine rule for lengths  a/sinA = b/sinB = c/sinC 
volume of a prism  cross section x length 
quadratic formula  Quadratic Formula (binary/octetstream) 
percentage change  difference/original x 100 
percentage of something  amount/total x 100 
area of a rectangle  length x width 
area of a parallelogram  base x height 
area of a trapezium  1/2 x (a+b) x h 
circumference of a circle  πd 2πr 
area of a circle  πr2 
volume of a rectangle  length x width x height 
volume of a cylinder  πrh 
volume of a pyramid  1/3 x area of base x height 
working out speed  speed = distance/time 
working out density  density = mass/volume 
working out pressure  pressure = force/area 
size of one exterior angle  360/number of sides 360/n 
number of interior angles  (sides2)180/sides (n2)180/n 
compound interest  Th Kh371 Djp (binary/octetstream) 
cosine rule for angles  a2b2+c2 / 2bc 