Question

in a parallelogram angle A:angle B=1:2 then angle A=?
​

Answer 1

Answer:

Given that in a parallelogram angle A:angle B =1:2

Angle A and angle be are adjacent to each other.

If angle is considered to be x then angle b is supposed to be 2x

we know that adjacent angles are supplymentary in a parallelogram.

Therefore,

Angle A + Angle B = 180

x + 2x =180

3x=180

x =180/3

x=60°

2x =2*60 = 120°

Hence angle A is 60° and angle B is 120°