Question

(b) In figure (2) given below, ABCD is a parallelogram. Find the values of x and y.​

Answer 1

Answer:

In parallelogram opposite angles are equal

so

angle A = angle C

3x - 20 = x + 40

2x = 60

x = 30

the sum of adjacent angles is 180°

Angle A + angle B = 180

3x - 20 + y + 15 = 180. put x = 30

70 + 15 + y = 180

y = 95

hope this will help you

Answer 2

Answer:

We know that in a parallelogram opposite angles are equal

so Each and evey opposite angle here in the figure will be equal i.e. angle A= angle C and angle B = angle D