Question

in a parallelogram ABCD , angle A is 20° more than angle B .find the measure of all the angles​

Answer 1

Answer:

since ABCD is a ||gm.

angle A + angle B = 180° ( As opposite sides are parallel to each other )

Let B = X

A = (x+20)

X+X+20 = 180°

2x = 160°

x = 80°

A = 100°

B = 80°

C = 100°

D = 80°

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