CAIE IGCSE Mathematics Extended E4.4.3 Solve Problems and Give Simple Explanations Involving Similarity Questions

Practise Extended CAIE IGCSE Mathematics by setting up proportions and explaining results for similar figures.

Exam points

Use similarity to solve geometric problems involving corresponding lengths and areas.
Set up and solve proportions between similar figures.
Give a concise explanation showing how similarity supports the result.

[Maximum number: 3]

PQR is a triangle.
T is a point on PR and U is a point on PQ.
RQ is parallel to TU.

Explain why triangle PQR is similar to triangle PUT.

Give a reason for each statement you make.

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