Given two angles A and B are complementary. Find the complement of $∠$ A if $∠$ A = 60°.

30°

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60°

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90°

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180°

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Solution

The correct option is A 30°
Since $∠$ A and $∠$ B are complementary, $∠$ A + $∠$ B = 90°.

Given, $∠$ A = 60°.
Then, $∠$ B = 90° - 60° = 30°.
The complement of $∠$ A is $∠$ B = 30°.

The value of the complement of $∠$ A is 30°.

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