Question

The measure of two adjacent angle of a parallogram are in the ratio 4 : 5 find the measure of each of the angle of the parallogram solve it

Answer 1

Sum of the adjacent angles in any parallelogram= 180

ratio of adjacent angles = 4:5 (given)
let first angle = 4x
second angle = 5x
4x+5x=180
9x=180
x=180/9
x= 20
therefore
required angles are
first angle = 4x= 4*20 =80
second angle = 5x= 5*20 =100