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If, in triangleABC, angleB=angleC=45^(@)...

If, in `triangleABC, angleB=angleC=45^(@)`, then

A

triangle is equilateral

B

triangle is obtuse angled

C

triangle is right angled

D

`B= cos^(-1)(7//8)`

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Verified by Experts

The correct Answer is:
D
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