ECZ 2017 · O-Level Paper 1 — Symmetry
The diagram below shows a cone with apex V and radius r. How many planes of symmetry has the cone?
- A. 1
- B. 2
- C. 4
- D. Infinitely many
Verified working — step 1
A cone is fully symmetric about its vertical axis - and that changes the counting completely.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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