Question

Find the angle which is 4 by 5 of its supplement

Answer 1

Answer:

80 degrees

Step-by-step explanation:

Let x be the angle

So 5/4x is the other angle

x + 5/4x = 180

4/4x + 5/4x = 180

9/4x = 180

x = 180*4/9

x = 80