Mathematics (Syllabus D) · Oct / Nov 2025 · Paper 12 · Question 23
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NOT TO SCALE E D X A B C The diagram shows a square-based pyramid. X is the centre of the square base. Vertex E is vertically above X and EX = 7 cm. The perpendicular height of triangle BEC is 11 cm. Work out the length of the base of the pyramid. Give your answer as a surd in its simplest form. cm [4]
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