Question

Help find lateral area and surface area of the right prism please. Round answers to nearest hundredth if necessary.

Answer 1

lateral area

$A=Ph$

to find the missing side of the triangle we have

$\begin{gathered} 3^2+8^2=x^2 \\ 9+64=x^2 \\ 73=x^2 \\ x=\sqrt[]{73} \\ x=8.5 \end{gathered}$

so,

$\text{Alateral}=(3+8+8.5)\times9.1=19.5\times9.1=177.45m^2$

answer: 177.45 sq m

surface area

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