ECZ 2017 · O-Level Paper 1 — Circle Theorems
In the diagram below, A, B, C, D, E and F are points on the circumference of a circle. Angle FBD = 70° and angle AEF = 20°. Find angle ACF.
- A. 20°
- B. 70°
- C. 40°
- D. 90°
Verified working — step 1
Angle ACF and the given angle AEF stand on the SAME chord AF, from the same side of the circle.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