Question

the adjacent angle of a parallelogram are in ratio 7:2 find the larger opposite angle​

Answer 1

let the adjacent angles be x

then, the adjacent angles are 7x and 2x

ATQ,

7x + 2x = 180

9x = 180

x = 180/9

x = 20

1st adjacent angle = 7×20

= 140 degree

2nd adjacent angle = 2×20

= 40 degree

opposite angle to 1st adjacent angle = 140 degree

opposite angle to 2nd adjacent angle = 40 degree

therefore the angles are 140 degree, 40 degree, 140 degree, and 40 degree

Answer 2

refer above attachment please