More Transformation Stuff (Edexcel GCSE Maths): Flashcards

A single equivalent transformation

Compare original & final positions (ignore intermediate)

180° rotation about origin

Multiply by $n$

Multiply by $n^2$

Multiply by $n^3$

Area has 2 dimensions (length × width)

Volume has 3 dimensions (length × width × height)

$n = \frac{\text{new length}}{\text{old length}}$

$n = \sqrt{\frac{\text{new area}}{\text{old area}}}$

$n = \sqrt[3]{\frac{\text{new volume}}{\text{old volume}}}$

$n$ for length, $n^2$ for area, $n^3$ for volume