Respuesta :

A pair of angles whose sum is 90 degrees are called Complementary Angles.

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Answer: Second option is correct.

Step-by-step explanation:

Since we have given that

A pair of angles whose sum is 90 degrees.

Since we know that "Sum of pair of angles is 90 degrees, then it is known as complementary angles."

whereas, Supplementary angles are those pair of angles whose sum is 180 degrees.

Hence, Second option is correct.

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