Question

if (y+20) and (y+10)are supplementary angles. find the angles

Answer 1

Step-by-step explanation:

(y + 20) + (y + 10) = 180

2y + 30 = 180

2y = 180 -30

2y = 150

y = 150/2

y = 75

(y + 20) = 75 + 20 = 95

(y + 10) = 75 + 10 = 85

Hope it will help you

Answer 2

Answer:

The angles are 105°and 75°

Step-by-step explanation:

We know that sum of tw0 supplementary angles are 180°

let the angles be x and y

x+y=180

y+20+y+10=180

2y+30=180

2y=180-30

2y = 150

y=75°

x+75=180

x=180-75

=105