Q. 235.0( 1 Vote )

In the given figure, O is the centre of a circle and OAB = 50°. Then, CDA = ?


A. 40o

B. 50o

C. 75o

D. 25o

Answer :

Given: OAB = 50°


Construction: Join AC


Here,


In ΔAOB


OA = OB (radius)


OAB = OBA (angles opposite to equal sides are equal)


OBA = 50°


OBA = CDA (angles in the same segment)


CDA = 50°

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