ECZ 2014 · O-Level Paper 1 — Similarity and Congruency
The ratio of the surface areas of two similar solids is 1 : 64. Calculate the ratio of their volumes.
- A. 1 : 8
- B. 1 : 4 096
- C. 1 : 512
- D. 1 : 64
Verified working — step 1
Route the ratio through LENGTHS: square-root the areas down to lengths, then cube up to volumes.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.
Have a different question?
Search it — if it is from a past paper or a school mock, chances are we have it worked out, or one that uses the same method.
Search any past-paper question