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GCSE Mathematics · key term
Sides or measurements that occupy matching positions in similar shapes or solids.
Used by Edexcel and OCR
Specification R12 · Paper 1, Paper 2, Paper 3
Revise: Geometric ComparisonMathematically, similar shapes have equal corresponding angles and corresponding lengths in one constant ratio. One is therefore an enlargement or reduction of the other.
Specification 9.04c · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Foundation), Paper 4 (Higher), Paper 5 (Higher), Paper 6 (Higher)
A pair of sides, edges or other lengths that occupy matching positions in two similar figures.
Check that the lengths used to find a scale factor are corresponding lengths and are in the same units.
Match corresponding lengths before calculating a scale factor. Sides may not occupy the same position when one shape has been rotated or reflected.
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Two shapes are similar when they have the same shape, although they may have different sizes. Their corresponding angles are equal and every corresponding length changes in the same ratio. One shape can therefore be regarded as an enlargement of the other.