Congruent triangles (Edexcel GCSE Maths): Flashcards

Triangles that are exactly the same shape and size

One of four specific conditions

All three corresponding sides equal

Two angles and one corresponding side equal

Two sides and the included angle between them equal

The included angle between the two sides

Right angle, equal hypotenuses, one other side equal

Right-angled triangles only

Longest side opposite the right angle ($90°$)

Identify → State → Name → Conclude

Shared sides are equal in both triangles

$180°$