Question

A pair of angles whose sum is 90 degrees are called _____ angles. adjacent complementary supplementary vertical

Answer 1

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

Hope this helped you :)

Answer 2

Answer: Second option is correct.

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.