ECZ 2012 · O-Level Paper 1 — Trigonometry
Using the same diagram, calculate the area of triangle ACD.
- A. 39 cm2
- B. 21 cm2
- C. 18 cm2
- D. 42 cm2
Verified working — step 1
Take CD = 7 cm as the base. The perpendicular height from A to the line BCD is AB = 6 cm. Area = (12) x 7 x 6 = …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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