Stacy is covering the box below with sticky wrapping paper. If the paper cost 2 cents per square centimeter, how much will it cost to cover the entire box.

Given:

The shape of box is a right triangular prism.

Paper cost = 2 cents per square centimeter

To find:

The cost to cover the entire box.

Solution:

In the given right triangular prism, we have 3 rectangle surfaces and 2 triangular surfaces.

Area of a rectangle is

Area of rectangle with length 4 cm and width 3 cm is

Area of rectangle with length 4 cm and width 4 cm is

Area of rectangle with length 4 cm and width 5 cm is

Area of a triangle is

Area of triangle with base 3 cm and height 4 cm is

Bottom and top triangular surfaces are equal.

Now, total surface area of the box is

Paper cost = 2 cents per square centimeter

Cost of 60 square centimeter paper is

Therefore, the cost to cover the entire box is 120 cents or $1.2.

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