Question

.If an angle is 3/5 of its supplement , find its measure.

Answer 1

Answer:

67.5 degrees

Step-by-step explanation:

180=x+5/3x

180=8/3x

x=67.5

sorry if wrong

Answer 2

Answer:

Let an angle be x

Second angle = 3/5 x

Supplementary angles=

a+ b = 180 degrees

x + 3/5 x = 180

5x + 3x / 5 = 180

8x / 5= 180

8x = 180 × 5

8x = 900

x = 900 / 8

x = 112.5 degrees