Question

angles of a linear pair is the ratio 4:5.what is the measure of each angle​

Answer 1

Answer:

let the angles be 4x and 5x

4x+5x=180

9x=180

x=180/9=20

Answer 2

Answer:

Step-by-step explanation:

Let the angles be 4x , 5x

4x+5x=180°(linear pair = straight line)

9x=180°

x=180/9°

x=20°

so, 4x=4×20°

=80°

and, 5x=5×20°

=100°