Asked by amari gainer
The area of a trapezoid is 240cm2. The height is 20cm and the length of one of the parallel sides is 8cm. Find the length of the second parallel side. Express your answer as a simplified fraction or a decimal rounded to two places.
Answers
Answered by
oobleck
since A = (b1+b2)/2 * h, you have
(8+b)/2 * 20 = 240
so find b.
(8+b)/2 * 20 = 240
so find b.
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