Question

Complementary angle of 45 and supplementary angle of 90 are......?

Answer 1

equal

Explanation:

complementary angles add to `90^@`.

if one complementary angle is `45^@`, then the other must be `90^@ - 45^@`, which is `45^@`.

the two complementary angles are `45^@` and `45^@`, meaning that they are equal.

supplementary angles add to `180^@`.

if one supplementary angle is `90^@`, then the other must be `180^@ - 90^@`, which is `90^@`.

the two supplementary angles are `90^@` and `90^@`, meaning that they are equal.