Question

hw can we remember complementary and supplementary angles

Answer 1

complementary angles sum up to 90 degree
supplementary angles sum up to 180 degree

you can remember by complementary angles is small so they are 90 degree and supplementary angles are big so they are big

Answer 2

Complementary Angles ~ Angles that add up to 90°.

Supplementary Angles ~ Angles that add up to 180°.

If u know Hindi, then complementary angles starts with com, and is spelled like kæm like the Hindi word कम. कम means less. And 90° is less than 180°. So it could be कमplementary. Ha-ha.