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Find the surface area of the prism .The surface area of the prism is _ in2.

Find The Surface Area Of The Prism The Surface Area Of The Prism Is In2 class=

Sagot :

Answer:

518 square inches

Explanation:

Surface area of a prism is expressed as;

[tex]SA\text{ = 2(lw+wh+lh)}[/tex]

l is the length = 8in

w is the width = 11in

h is the height = 9in

Substitute into the formula;

[tex]\begin{gathered} SA\text{ = 2\lbrack(8}\cdot11\text{)+(11}\cdot9\text{)+(8}\cdot9\text{)\rbrack} \\ SA\text{ =2\lbrack{}88+99+72\rbrack} \\ SA\text{ = 2(}259\text{)} \\ SA\text{ = }518in^2 \end{gathered}[/tex]

Hence the surface area of the prism is 518 square inches

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