Question #80ae2

1 Answer
Parabola
Jan 31, 2018

#A=172##m^2#

Explanation:

Remember that the surface area of a rectangular prism is #2lw+2lh+2wh#

(Make sure you see why!)

We simply plug in our values to the formula.

#A=2(l)(w)+2(l)(h)+2(w)(h)#

=>#A=2(7)(2)+2(7)(8)+2(2)(8)#

=>#A=28+112+32#

=>#A=172##m^2#

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