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Abcd is an isosceles trapezoid with legs AB and CD and base BC. If the length of AB is 7y-4, the length of BC s 4y-6 and the length of CD is 8y-18, find the value of y. 30 points for brainliest!

Daniel King

in Mathematics

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Bethany Evans on November 21, 2018

It tells us that the legs of the isosceles trapezoid are AB and CDAB = 7e - 4CD = 8y - 18 inches of any isosceles trapezoid, the two sides are of equal length.Therefore, AB = CD⇒ 7e - 4 = 8y - 18Add 18 to both sides of the equation7y - 4 + 18 = 8 - 18 + 187y + 14 = 8ySubtract 7and on both sides of the equation7y - 7 + 14 = 8y - 7y14 = y⇒ y = 14


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