ECZ 2022 · O-Level Paper 1 — Similarity and Congruency
Two similar solids P and Q have volumes 80cm3 and 270cm3 respectively. The height of the smaller solid is 8cm. Find the height of the larger solid.
- A. 27cm
- B. 12cm
- C. 18cm
- D. 8cm
Verified working — step 1
Volumes of similar solids are in the CUBE of the length ratio - so cube-root the volume ratio to reach lengths.The 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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