Answer:
648 in^2
Step-by-step explanation:
your must find the surface area of the rectangular prism
this can be modelled by
2(9 * 9) + 2(13.5 * 9) + 2(13.5 * 9)
or
2(9 * 9) + 4(13.5 * 9)
then you do whats inside the parenthesis
2(81) + 4(121.5)
and lastly you multiply and add
162 + 486 = 648
the answer is 648 in^2
