Question

Two supplementary angles are in the ratio 4:5 find the angles​

Answer 1

Answer:

4x+5x=180

9x=180

x=180/9

x= 20

Answer 2

Answer:

The two angles are 80°and 100°

Step-by-step explanation:

Let x be the common factor for the ratio,

Therefore, 4 will be 4x and 5 will be 5x.

or, 4x+5x=180° [Since, these are supplementary angles]

or, 9x=180°

or, x=20°

Since, x=20°

Hence, 4x = 80°

and, 5x = 100°

Henceforth, the two angles are 80°and 100°

If you want to know more about Mathematics then you can visit my YouTube channel.

The name of my channel is

Samanyu Pattanayak