Question

Two supplementary angels are in ratio 5:4. Find the angels

Answer 1

Let the angles be 5x & 4x, since they are supplementary

5x+4x = 180°

= 9x = 180°

x = 20°

Angles :- 5x =5×20= 100°

= 4x = 4×20= 80°

Answer 2

Step-by-step explanation:

let the two angles be 5x,4x

According to question:-

5x+4x=180°

9x=180°

x=180°/9

x=20

angle 1=5x=5×20=100°

angle 2=4x=4×20=80°