Question

Find the value of a

Answer 1

oh and please tell me how did you got it?

Answer 2

Since you have a quadrilateral with two pairs of opposite sides parallel, it is a parallelogram. Opposite sides of a parallelogram are congruent.
Set the expression of the top side equal to the expression of the bottom side, and solve for a.
Then plug in that value of a into the expression of each side to get the length of each side.

Answer 3

so id put x-6=6?

Answer 4

Where do you see that? In your picture I see expressions with a not x.

Answer 5

right sorry, wrong thing. uh, so i would be a-3.5=19.5?

Answer 6

Yes. Now solve for a.

Answer 7

got it! thanks so much!

Answer 8

wlcm