1 Answer

Daniel Tull · Answer 1 · 2023-01-06T13:27:20+0000

The surface area of the rectangular prism is

$A=2\lbrack l* w+l* h+w* h\rbrack$

l = 9 cm

w = 5 cm

h = 8 cm

Substitute them in the rule above

$\begin{gathered} A=2\lbrack9*5+9*8+5*8\rbrack \\ A=2\lbrack45+72+40\rbrack \\ A=2*157 \\ A=314 \end{gathered}$

The surface area is 314 cm^2

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