GCSE Maths | Right-angled Triangles

1 min read
  • Only applies to right-angled triangles
  • Pythagoras theorem
    • a2 + b2 = c2 where c is the longest side
  • SOH CAH TOA (form pyramids)
    • sin(x) = O/H
    • cos(x) = A/H
    • tan(x) = O/A

Question 1

Question 2

Question 3

Question 4

1 min read

GCSE Maths | Proof

* any number: n * any even number: 2n * any odd number: 2n+1 * proving it is a multiple of 8: factorise 8 out and show 8( ) * proving it is a square number: factorise it