Given EF is the midsegment of Isosceles trapezoid ABCD. BC = 17x, EF = 22.5x + 9, and AD = 30x + 12, find AD.
AD should be 30x. it's already given. if you want to find x the solution will be :The midsegment (or median) in an isosocles trapezoid is half the sum of the lengths.
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