Corresponding parts

Definition

Sides or angles that occupy matching positions in two shapes.

Used by Edexcel and OCR

Specification G5 · Paper 1, Paper 2, Paper 3

A pair of vertices, sides or angles that occupy matching positions in two shapes.
At Foundation tier, you should recognise and use congruence, including finding a missing angle or side from its corresponding part.
Revise: Congruence Criteria

Specification 9.02a, 9.02b · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Foundation), Paper 4 (Higher), Paper 5 (Higher), Paper 6 (Higher)

1
In a proof, give a reason for every equality used, name the congruence criterion, and only then use corresponding parts.

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Sides or angles that occupy matching positions in two figures.