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In the above figure, ABCD is a cyclic qu...


In the above figure, ABCD is a cyclic quadrilateral and `/_BCD =2 /_ BAD`. Find the angle made by the diagonal BD at the centre of the circle.

A

`60^(@)`

B

`80^(@)`

C

`100^(@)`

D

`120^(@)`

Text Solution

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The correct Answer is:
D
(i) Opposite angles of a cyclic quadrilateral are supplementary
(ii) In a cyclic quadrilateral ABCD, opposite angles are supplementary.
(iii) Angle made by arc BD at centre `=2 /_ BAD`.
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