Question

Please solve the question below​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

∠BOC = 360° - (∠AOB + ∠AOC)

= 360° - (100°+120°)

= 360° - 220°

= 140°

Since The angle subtended by a arc at the centre is double the angle subtended by any point on the remaining part of the circle with cente. (thm)

∠A = 1/2 ∠BOC = 1/2 x 140° = 70°

∠B = 1/2 ∠AOC = 1/2 x 120° = 60°

∠C = 1/2 ∠AOB = 1/2 x 100° = 50°