Question

Identify which of the following pairs of angles are complementary and which are supplementary.

(i) 130°, 50°

(ii) 45°, 45°

(iii) 80°, 10°

Answer 1

(i) 130° + 50° = 180°
∴ This pair is supplementary angles.

(ii) 45° + 45° = 90°

∴ This pair is complementary angles.

(iii) 80°+ 10° = 90°

This pair is complementary angles.