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In the given figure, AD is a diameter of...

In the given figure, AD is a diameter of a circle with centre O and AB is a tangent at A. C is a point on the circle such that DC produced intersects the tangent at B and `|__ABD=50^(@)`. Find `|__COA`.

Text Solution

Verified by Experts

The correct Answer is:
`|__COA = 80^(@)`.
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