In a parallelogram ABCD, angle A and angle B are in the ratio 1:2. Find the angle A.

30° 45° 60° 90°

60°

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°