In the given triangle right angled at B, which pair of angles is complementary?

∠B and ∠C

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∠A and ∠B

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∠C and ∠A

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None of these

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Solution

The correct option is C
∠C and ∠A

Two angles are said to be complementary if their sum is $90^{\circ}$ .

The triangle is right angled at B.

With angle sum property of the triangle,∠A+∠B+∠C= $180^{\circ}$

$∠ A + ∠ C$ = $90^{\circ}$ . Hence, angle A and C are complementary.

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