Mathematics, 22.06.2019 17:00 loulou6166
Find the length of the second base of a trapezoid with one base measuring 29ft, a height of 9ft, and an area of 193.5 ft squared
Answers: 2
![\bf \textit{area of a trapezoid}\\\\ A=\cfrac{h(a+b)}{2}~~ \begin{cases} a,b=\stackrel{bases}{parallel~sides}\\ h=height\\[-0.5em] \hrulefill\\ a=29\\ h=9\\ A=193.5 \end{cases}\implies 193.5=\cfrac{9(29+b)}{2} \\\\\\ 387=9(29+b)\implies \cfrac{387}{9}=29+b\implies 43=29+b\implies 14=b](/tpl/images/0401/0090/59f4d.png)
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Find the length of the second base of a trapezoid with one base measuring 29ft, a height of 9ft, and...
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