Respuesta :

[tex]\bf \textit{volume of a trapezoid}\\\\ V=\cfrac{h(a+b)}{2}~~ \begin{cases} a,b=\stackrel{bases}{parallel~sides}\\ h=height\\ ---------\\ a=18\\ b=23\\ h=12 \end{cases}\implies V=\cfrac{12(18+23)}{2} \\\\\\ V=246[/tex]

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