Measure of the smaller angle is 75°
Step-by-step explanation:
- Step 1: Sum of supplementary angles is 180°. Given ratio of angles is 5:7.
Let angles be 5x and 7x.
⇒ 5x + 7x = 180
⇒ 12x = 180
⇒ x = 15
- Step 2: Calculate smaller angle which is 5x
⇒5x = 5 [tex]\times[/tex] 15 = 75°
