Question

consider the statement, \all angles are complementary\ is this statement true?
no, all angles are supplementary
no, angles are not complementary
no, some angles are complementary
yes, all angles are complementary

Explanation:

Complementary angles are two angles whose sum is 90 degrees. Not all angles have a sum of 90 degrees with another angle. Only some pairs of angles are complementary.

Answer:

No, some angles are complementary