Question

Hayden is covering the box below with sticky wrapping paper. If the paper costs 8 cents per square centimeter, how much will it cost to cover the entire box?

A rectangular prism with length 3 centimeters, width 4 centimeters, and height 12 centimeters.

Answer 1

• $7.68

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Find the total surface area of the given prism.

• S = 2B + Ph, where B - base area, P - base perimeter

Substitute and calculate:

• S = 2(3*4) + 2(3 + 4)(12)
• S = 24 + 72
• S = 96 cm²

Find the cost of the paper:

• 96*8 cents = 768 cents = $7.68