supergirl1311 supergirl1311

03-03-2017
Mathematics

contestada

ABCD is the isosceles trapezoid with legs line AC and base line BC if the length of line AB is 7Y-4 the length of line BC is 4Y -6 and the length of line CD 8Y -18 find the value of Y

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ChandrikaP ChandrikaP

03-03-2017

The diagonals of isosceles trapezoid are congruent.

So AB=CD
7y-4=8y-18
-y=-14y=14°

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