4024/22 May/Jun 2025, Question 1: Rotational Symmetry
Cambridge O Level Mathematics 4024 · Paper 22 (Calculator) · Calculator · 1 mark
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The question, in short
On a 6 by 6 grid, use the given diagonal lines and three shaded squares to finish the pattern, which has rotational symmetry of order 4.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 1 mark
- 1Centre of rotation is the point where the lines meet
- 2Order 4: the pattern must look the same after turns of 90°, 180° and 270° about that point
- 3Draw the missing fourth line: from the centre 2 squares left and 2 squares down, diagonally
- 4Shade the missing fourth square: 2 to 3 squares left of the centre and 1 to 2 squares below it (the 180° image of the shaded square at the top right)
AnswerDiagram completed correctly.
Stuck on a step? Read the free lesson: Rotational Symmetry
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Also searched as: 4024/22/M/J/25 · 4024_s25_qp_22 · 4024 s25 22 · question 1.
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