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0580/12 Oct/Nov 2024, Question 4: Lines of Symmetry

Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Calculator · 4 marks

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The question, in short

A diagram shows a regular five-sided polygon. Name the shape, draw every line of symmetry on it, and state its rotational symmetry order.

Summarised in our own words. Use the official paper for the exact wording and the diagram.

Part (a) · 1 mark

Give the mathematical name of the regular five-sided polygon shown.

  1. 1The polygon has 5 sides, so it is a pentagon

AnswerPentagon

Part (b) · 2 marks

Draw all lines of symmetry on the regular pentagon diagram.

  1. 1A regular pentagon has 5 lines of symmetry
  2. 2Draw each line from a vertex through the midpoint of the opposite side

AnswerAll 5 lines of symmetry drawn

Part (c) · 1 mark

State the order of rotational symmetry of the regular pentagon.

  1. 1It fits onto itself 5 times in a full turn
  2. 2Order 5

Answer5

Stuck on a step? Read the free lesson: Lines of Symmetry

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Also searched as: 0580/12/O/N/24 · 0580_w24_qp_12 · 0580 w24 12 · question 4.
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