ECZ 2011 · O-Level Paper 1 — Circle Theorems
Using the same diagram, find angle SBC.
- A. 64°
- B. 116°
- C. 128°
- D. 96°
Verified working — step 1
ABC is a straight line, so angles ABS and SBC add to 180°. Since angle ABS = 64°, angle SBC = 180 - 64 = …The full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
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