Question

Charlene is wrapping the box below. How much wrapping paper will she need? x 7in 5in x 9in

Answer 1

Charlene will need $286$ square inches of wrapping paper.

To calculate the amount of wrapping paper needed, you need to find the surface area of the box.

1. Surface Area of a Rectangular Prism: $SA = 2lw + 2lh + 2wh$
2. Substitute the given dimensions: $SA = 2(7*5) + 2(7*9) + 2(5*9)$
3. Calculate the total:  $SA = 70 + 126 + 90 = 286$ square inches

Therefore, Charlene will need $286$ square inches of wrapping paper.