ABCD is an isosceles trapezoid with legs ab and cd and base bc. if the length of ab is 7y - 4, the lengths of bc is 4y-6 and the length of cd is 8y-18 find the value of y.

Question

adajiamcneal · Answer

@Here_to_Help15

utterly_confuzzled · Answer

Since it's an isosceles triangle, two of the sides have to be even. 

I'm assuming the two legs are equal since that's how it usually is.  

ab= 7y-4
cd = 8y-18

That means 7y-4=8y-18

From there you should be able to solve for y.

adajiamcneal · Answer

so what do i do?

utterly_confuzzled · Answer

From there you solve for y.|dw:1420496678702:dw|