- A144°
- B216°
- C120°
- D72°
Step-by-Step Solution
5 equal angles: 360° ÷ 5 = 72° each. A to C passes B, so ∠AOC = ° = 144°. (216° is the reflex angle the long way round.)
Answer: A) 144°
A kolam has 5 lines drawn from its centre O to points A, B, C, D and E, spaced evenly. What is ∠AOC?
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