How much material will Sara use to a cardboard jewelry box that is 6 cm by 6 cm by 3 cm?

1 Answer
[eden]
May 5, 2017

Surface area problem!

Explanation:

First, we'll need to essentially split up the parts of the figure. We'll denote each side as #S1# etc.

#S1#:
= #6x6#
= #36 cm^2#
= #36 * 2#
= #72 cm^2# (since there are two of these sides)

#S2#
= #6x3#
= #18#
= #18 * 4# (there are four of these sides)
= #72#

#therefore SA = 144 cm^2#

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