406 in^2
First, calculate the surface area of the box:
2(10*9) + 2(10*7) + 2(9*7) = 180 + 140 + 126 = 446 in^2
Then subtract the total surface area from the total square inches of cardboard purchased:
500 - 446 = 54 in^2
Therefore, Cherese will have 54 square inches of cardboard left over.
Cherese needs to buy some cardboard to build a box
10 inches long, 9 inches wide, and 7 inches high. If
she purchases 500 square inches of cardboard, how
much will be left over? (1 point)
426 in.
2
446 in.
2
406 in.
2
54 in.
2
1 answer
1 answer