Question

Two angles of a parallelogram are in the ratio 7:2. Find all the angles

Answer 1

as sum of two consecutive angles is 180 in a parallelogram
we take ratios in x
7x+2x=180
9x=180
x=20
so angles would be 7*20=140
and 2*20=40
hope it helps you

Answer 2

hlo mate.

here is your answer.
__________________

There are four angles of a parallelogram. The two of the angles are supplementary and hence they sum up to 180 degree.
let the angles be 7x and 2x
7x+2x=180
9x=180
x=180 ÷9
x=20

therefore ,
7x=7×20
=140 degree
2x=2×20
=40 degree

...............

________________

hope it helps you