Respuesta :

HomertheGenius
If an isosceles trapezoid ABCD has legs AB and CD and base BC, then:
AB = CD
AB = 7 y - 4,  CD = 8 y - 18
8 y - 18 = 7 y - 4
8 y - 7 y = 18 - 4
Answer:
y = 14

Answer:

y= 14

Step-by-step explanation:

Isosceles trapezoid has opposite sides equal

Hence, AB and CD are equal

We have been given AB= 7y-4

And CD= 8y-18

According to the property

7y-4 = 8y-18

On simplification:

7y -8y= -18+4

On further simplification.

-y=-14

Hence, y =14

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