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OpenStudy (anonymous):
EF is a median of trapezoid ABCD. If the length of AB is 8x, and the length of CD is 20x, what is the length of EF in terms x??
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OpenStudy (anonymous):
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OpenStudy (anonymous):
Although you do not state it, I will presume that AB and CD are the two parallel sides of ABCD. In that case, then, since the length of the median is half of the sum of the two parallel sides, you have (AB + CD)/2 = EF, (8x + CD)/2 = 14x CD = 20x.
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