Question

e. Find the value of xin figure if O is centre of circle and OAB = 50°.​

Answer 1

Step-by-step explanation:

in Δ OAB

OA = OB = Radius

=> ∠OBA = ∠OAB

=> ∠OBA = 50°

∠CBA = ∠OBA as O lies on BC

=> ∠CBA = 50°

∠CDA = ∠CBA ( both angles subtended by same chord AC)

=> ∠CDA = 50°

=> O = 50°

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