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Incircle and Its Construction

If A, B and...

Question

If $A, B$ and $C$ are three points lying on a circle such that $B C$ is the diameter and $A B C$ form a triangle, then angle $A$ is

A

90^{o}

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B

180^{o}

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C

45^{o}

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D

none of these

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Solution

The correct option is D $90^{o}$
The angle subtended by the diameter on any point of the circle is $90^{0}$ .

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