find the value of x in figure if O is centre of circle and angle oab equal to 50 degree
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x = 50° in figure if O is centre of circle and angle oab equal to 50 degree
Step-by-step explanation:
in Δ OAB
OA = OB = Raius
=> ∠OBA = ∠OAB
=> ∠OBA = 50°
∠CBA = ∠OBA as O lies on BC
=> ∠CBA = 50°
∠CDA = ∠CBA ( both angles subtended by same chord AC)
=> ∠CDA = 50°
=> x = 50°
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