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Cambridge IGCSE Mathematics practice

MCQ practice - 1 Determine the lengths of similar figures. 2 Apply the relationships between lengths and areas, including the use of scale factors for similar shapes and their corresponding surface areas. 3 Calculate the volumes of similar solids using the relationship between their lengths. 4 Solve problems related to similarity and provide straightforward explanations, including demonstrating that two triangles are similar using geometric reasoning. - Similarity

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MCQ

Type

cambridge_mcq

Style

Topic

Similarity

Exam-style question

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Two similar triangles have a length scale factor of 4. What is the ratio of their areas?.

  1. A.4
  2. B.8
  3. C.12
  4. D.16

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  • Topic focus: Similarity.
  • Question style: cambridge_mcq.
  • Reasoning demand: reasoning.
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Paper 2 structured question: Similarity

Paper 2Core or Extended Mathematics3 marks

Diagram Description

Two similar triangles ABC and DEF

Triangle ABC is similar to triangle DEF. The length of side AB is 6 cm, and the corresponding side DE is 9 cm. The area of triangle ABC is 24 cm².

Triangle ABCTriangle DEF
AB = 6 cmDE = 9 cm
Area = 24 cm²Area = ?
  1. a

    Calculate the area of triangle DEF.

    Aim for approximately 3 distinct marking points.

    [3]