Question

ABCD is a parallelogram. Find the
values of x and y.​

Answer 1

Step-by-step explanation:

3x-20=x+40

3x-x=40-20

2x=20

x=10

And x+40+y+15=180

10+55+y=180

y+65=180

y=180-65

y=115

Answer 2

Step-by-step explanation:

(x+40) + (3X-20) = 180

4x+20=180

4x=180-20

4x=160

x=160/4

_______

| X = 40 |

Also,

(3x-20) + (y+15) =180

3(40)-20+y+15 = 180

120-20+15+y = 180

y = 180-115

_______

| y = 65 |