Question

An angle is equal to one-third of its supplement. Find its measure

Answer 1

Step-by-step explanation:

let the angle be x

supplement would be 180° -x

x = 1/3 (180°-x)

x = 180°/3 - x/3

x+ x/3 = 60°

4x /3 = 60°

4x = 180

x= 180/4 = 45°

(supplement means that the two angles have the sum as 180°)