Mathematics 4024 · O Level · Right-angled triangles

Right-angled triangles — practice question

The diagram depicts a square-based pyramid. X marks the centre of the square base. Vertex E lies directly above X, and EX = 7 cm. The perpendicular height of triangle BEC is 11 cm.

(main)[4]

Calculate the length of the base of the pyramid. Give your answer as a surd in simplest form.

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