Question

In the adjacent figure angle ADB = 50° , find angle ACB​

Answer 1

Step-by-step explanation:

answer is. .....

65°.......

Answer 2

∠ACB = 65° if In the adjacent figure angle ADB = 50°

Step-by-step explanation:

AOBD is a quadrilateral

Sum of angles of Quadrilateral = 360°

=> ∠BOA + 90° + ∠ABD + 90° = 360°

=>  ∠BOA + 50°  = 180°

=> ∠BOA   = 130°

∠BOA   = 2 ∠ACB  ( angle subtended by chord AB  at center & arc segment)

=> 130° = 2 ∠ACB

=> ∠ACB = 65°

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