Question

Adjacent angle of a parallelogram are x degree and (x+20) degree then determine the measure of each angle

Answer 1

Answer:

given angles x and x+20

let the four angles be x, x+20, x, x+20

sum of angles in a parallelogram is 360

so x + x + x+20 + x+20 = 360

4x + 40 = 360

4x = 360 - 40

4x = 320

x = 320/4

x = 80

hence the angles are x, x+20, x, x+20

80, 80+20, 80, 80+20

80, 100, 80, 100