ECZ 2022 · GCE Paper 1 — Circle Theorems
In the following diagram, A, B, C and D are points on the circumference of the circle, centre O. BD is the diameter, AD = AC and angle BDC = 22°. Find (c) ACO.
- A. 68°
- B. 34°
- C. 22°
- D. 56°
Verified working — step 1
angle BAC = 22° and angle BAD = 90°.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