Question

An angle is one-thirds of a straight line angle; find:

(i) the angle
(ii) the complement and the supplement of the angle obtained above.

Answer 1

straight angle = 180°

∴ given angle = `1/3 xx 180^circ` = 60°

(i) complement of the given angle

= 90° - 60° = 30°

(ii) Supplement of the given angle

= 180° - 60° = 120°