ECZ 2011 · O-Level Paper 1 — Circle Theorems
In the diagram, ABCDEF is a regular hexagon and HEFG is part of a regular pentagon. Calculate angle DEH.
- A. 132°
- B. 108°
- C. 120°
- D. 152°
Verified working — step 1
Three angles fill the full turn at E: the hexagon's, the pentagon's, and the one asked for.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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