A gift box is 12 inches long, 8 inches wide, and 2 inches high. How much wrapping paper is needed to wrap the gift box?
A)272 in2
B)192 in2
C)384 in2
D)184 in2
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OpenStudy (shane_b):
All you need to do is calculate the area of each side and add them together. If you need a nudge with that let me know.
jimthompson5910 (jim_thompson5910):
You can also use the formula
SA = 2*(LW + WH + LH)
where
SA = surface area
L = length
W = width
H = height
OpenStudy (anonymous):
i am sorry what ???
jimthompson5910 (jim_thompson5910):
where are you stuck?
jimthompson5910 (jim_thompson5910):
the formula for the surface area of a box with length L, width W and height H is
SA = 2*(LW + WH + LH)
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jimthompson5910 (jim_thompson5910):
in your case
the length is 12, so L = 12
the width is 8, so W = 8
the height is 2, so H = 2
jimthompson5910 (jim_thompson5910):
which means
SA = 2*(LW + WH + LH)
turns into
SA = 2*(12*8 + 8*2 + 12*2)
after you plug the given info in
OpenStudy (anonymous):
ok so i have to multiply???
jimthompson5910 (jim_thompson5910):
yes, then add
this is all for the stuff in the parenthesis
jimthompson5910 (jim_thompson5910):
once you have evaluated the stuff in the parenthesis, you just double the result
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