In a parallelogram ABCD, angle A and angle B are in the ratio 1:2. Find the angle A.
Answer & explanation
Correct answer: option 3
As we know, the sum of adjacent angles of a parallelogram is equal to 180° and opposite angles are equal to each other.
Thus, in parallelogram ABCD angle A and angle B are adjacent to each other
Let angle A = x and angle B = 2x.
So, x + 2x = 180°
3x = 180°
x = 60°