GCSE Maths Specification

OCR J560

Section 9.04: Similarity

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#9.04a

Identify similar triangles.

Prove that two triangles are similar.

#9.04b

Enlarge a simple shape from a given centre using a whole number scale factor, and identify the scale factor of an enlargement.

Identify the centre and scale factor (including fractional scale factors) of an enlargement of a simple shape, and perform such an enlargement on a simple shape.

Perform and recognise enlargements with negative scale factors.

#9.04c

Compare lengths, areas and volumes using ratio notation and scale factors.

Apply similarity to calculate unknown lengths in similar figures.

[see also Direct proportion, 5.02a]

Understand the relationship between lengths, areas and volumes of similar shapes.

[see also Direct proportion, 5.02a]