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0580/33 May/Jun 2026, Question 3: Congruent Shapes

Cambridge IGCSE Mathematics 0580 · Paper 33 (Core) · Calculator · 2 marks

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The question, in short

Using a 1 cm² grid diagram with a shaded shape and five labelled shapes A to E, identify the congruent shape and find the area of shape B.

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

Part (a) · 1 mark

State which labelled shape is congruent to the shaded shape.

  1. 1Congruent means same shape and same size (it may be rotated or reflected)
  2. 2Shape D is the shaded shape rotated, so the answer is D

AnswerD

Part (b) · 1 mark

Work out the area of shape B in cm².

  1. 1Split B along the line 2 squares up: a trapezium and a triangle
  2. 2Trapezium = (6 + 4)/2 × 2 = 10 cm²
  3. 3Triangle = 1/2 × 4 × 2 = 4 cm²
  4. 4Area = 10 + 4 = 14 cm²

Answer14

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Also searched as: 0580/33/M/J/26 · 0580_s26_qp_33 · 0580 s26 33 · question 3.
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