Free Version
Moderate

# Covering a Prism

ACTMAT-4CNXQD

The members of a sewing club are to cover the entire exterior of the rectangular box below with square patches, with each patch being 1 square foot.

If the patches are attached side by side, with zero overlap and zero gaps, how many patches will the sewing club need?

A

$13$

B

$52$

C

$60$

D

$72$

E

$108$