Question

the two adjacent angles of a parallelogram are in the ratio of 4:5 find the all angle of the parallelogram

Answer 1

Step-by-step explanation:

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

Answer 2

Step-by-step explanation:

adjecent angles of a parallelogram are supplymentry.

so,

4x + 5x = 180

9x = 180

x = 180/9

x = 20

angles 4x = 4 × 20 = 80°

5x = 5 × 20 = 100°

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