ECZ 2021 · O-Level Paper 1 — Similarity and Congruency
The areas of two similar cylinders are 64cm2 and 36cm2 respectively. If the height of the larger cylinder is 30cm, find the height of the smaller cylinder.
- A. 20cm
- B. 40cm
- C. 15cm
- D. 22.5cm
Verified working — step 1
Area ratio larger:smaller = 64:36The full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.
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