Question

Name the relationship: complementary, or supplementary.

Answer 1

Complementary angles are the angles which add up to 90°. example - 60° + 30° = 90° . Supplementary angles are those angles which add up to 180° . example - 110° + 70° = 180°.

Explanation:

Answer 2

See below.

Explanation:

1. a and b are supplementary ( they add up to 180 degrees as they are on a straight line).

2,3 and 4 are complementary as in each case a + b = 90 degrees.