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Work Done as Dot Product

In a right tr...

Question

In a right triangle PQR, if ${P R}^{2} + {P Q}^{2} = {Q R}^{2}$ , then the angle equal to $90^{o}$

∠ P

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∠ Q

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∠ R

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None of these

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Solution

The correct option is A $∠ P$
$∠ P = 90^{o} ‘$

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