Robin bought a square sheet of paper of side 12 inches to decorate a pencil box he made in craft class. The pencil box has a height of 5 inches, a width of 3 inches, and a length of 4 inches.

Approximately how many square inches of paper will be remaining if he pastes paper on to the bottom base and the four side surfaces of the pencil box without any overlap?

Question

Robin bought a square sheet of paper of side 12 inches to decorate a pencil box he made in craft class.  The pencil box has a height of 5 inches, a width of 3 inches, and a length of 4 inches.
 
Approximately how many square inches of paper will be remaining if he pastes paper on to the bottom base and the four side surfaces of the pencil box without any overlap?

anonymous · Answer

please help

jlastino · Answer

I think i answered a question like this yesterday lol

You should find the  area to be covered on the pencil box (not including the top)
lw+2wh+2lh
Then find the area of the square sheet of paper A= s^2
Subtract the sum of the area on the pencil from the area of the sheet of paper

anonymous · Answer

so what's the answer

jlastino · Answer

Find the are that's going to cover the pencil case.
4(3)+2(3)(5)+2(4)(5) = 12+30+40 = 82
FInd the area of the sheet of paper = 12^2=144
Then subtract the area to be covered form the area of the paper 144-82
You will be left w/ 62 square inches