Question

The measure of two adjacent sides of a parallelogram is (3x-20) and (5x+20) ,then find the measure of each of the angle of parallelogram.

Answer 1

As,adjacent sides are supplementary

so,(3x-20)+(5x+20)=180

3x-20+5x+20=180

8x=180

x=180/8=22.5

so m of each angle will be ,

3(22.5)-20=47.5,

and 5(22.5)+20=132.5