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Find EF in the trapezoid.
Find EF in the trapezoid.EF=
B
E
>
5
D
3x +5
7x +3
F
C
The length of EF is 11EF is the median of the trapezoid ;EF = 1/2(AD + BC)3x + 5 = 1/2(5 + 7x + 3)3x + 5 = 1/2(7x + 8)2(3x + 5) = 7x + 86x + 10 = 7x + 86x - 7x = 8 - 10-x = -2x = 2To find EF :3(2) + 5EF = 6 + 5EF = 11Hence, length of EF is 11...
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