Question

ABCD is a parallelogram AB= 2x+5, BC=3x+7 , CD= 3x-8 , how long are AD and AB?

Answer 1

Since it is a parallelogram, sides CD and AB are of equal length... so set your equation up
2x+5 = 3x - 8
and solve for x.

Answer 2

thankyouuuuuuuuu :*

Answer 3

are you able to solve for x?

Answer 4

i'm trying? but i think i still can't.

Answer 5

well since it is -8, then you have to +8 on the other side...
so 5+8 = 3x - 2x

Answer 6

so you are left with 13 = 1x... and then you are just left to substitute back into each expression to get your side lengths.

Answer 7

yah yah, i forgot , sorry thanks again :**

Answer 8

yw... anytime.

Answer 9

last question puhleaseeee? ? abcd is a parallelogram if angle a=3x-10, and angle c=2x+98 find x , angle a & angle b.

Answer 10

well the angles of a parallelogram are either going to be (1) supplementary or (2) congruent, just looking at my diagram, do you know the relationship between angle a and angle c,
are those congruent or supplementary?

Answer 11

congruent. so 3x+10=2x+98 ,and the x=88 am i ryt? :)

Answer 12

well right above that you said that it was 3x - 10, but yes you set them equal to each other and solve for x....

Answer 13

@zonazoo when you said plug back in the 13 for x. It said find side AD. So would that side just be 13? Or would I move the..... 3x+7 over there since it is parallel?

Answer 14

yes, when you plug that into 3(13)+7 for BC, that value will be the value of AD since those two sides are congruent.... so AD = 46.

Answer 15

thankyou :*

Answer 16

yw