<PRE><B>Question 216916</B>
A trapezoid has an area of 117 square feet and a height of 9 feet. One base is 4 feet shorter than the other base. How long is each base? Write an equation and solve it.
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Formula: Area = (h/2)(b1 + b2)
117 = (9/2)(x + (x-4))
(2/9)117 = 2x-4
26 = 2x - 4
2x = 30
x = 15 ft. (one of the bases)
x-4 = 11 ft. (the other base)
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Cheers,
Stan H.</PRE>