Question

Am I right? I think it's 108 or 72....

Sara is wrapping gift boxes. Each gift box is a rectangular prism with a square base of side 6 inches. The difference between the heights of the two gift boxes is 3 inches.

If the larger box has a surface area of 216 square inches, what is the difference in the surface area of the two boxes?

Answer 1

@009infinity

Answer 2

@FibonacciChick666

Answer 3

Height of the bigger box is a, then\[S _{b}=72+24a=216\]find a and insert it in the smaller boxs surface area formula:
\[S _{s}=72+4(a-3)\]then do this:
\[S _{b}-S _{s}\]

Answer 4

Correction:\[S _{s}=72+24(a-3)\]

Answer 5

Or you can just substract without finding a

Answer 6

draw a picture

Answer 7

The answer should be 72

Answer 8

oh no wt i will draw it again

Answer 9

@TheHero draw a pic then label said pic then write up the eq for surface area, then I will tell you if you are right :)