Juanita covered the outside of a gift box shaped like a rectangular prism with paper. The box is 3.2 feet long, 2.1 feet wide, and 2.7 feet high. Which of the following is closest to the total surface area of this box? a)34ft b)42ft c)30 d)18

actual area:

2(3.2*2.1 + 3.2*2.7 + 2.1*2.7) = 42.06

42 it is 42 ft.

42 42 ft

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To find the total surface area of a rectangular prism, you need to find the areas of all six faces and add them together.

The rectangular prism has six faces: a top face, a bottom face, two side faces, a front face, and a back face.

The area of each face can be found by multiplying the length of the side by the width of the side.

For the top and bottom faces, the length and width are 3.2 feet and 2.1 feet, so the area of each of these faces is 3.2 * 2.1 = 6.72 square feet.

For the side faces, the length and height are 3.2 feet and 2.7 feet, so the area of each of these faces is 3.2 * 2.7 = 8.64 square feet.

For the front and back faces, the width and height are 2.1 feet and 2.7 feet, so the area of each of these faces is 2.1 * 2.7 = 5.67 square feet.

To find the total surface area, add up the areas of all six faces:

2 * 6.72 + 2 * 8.64 + 2 * 5.67 = 13.44 + 17.28 + 11.34 = 42.06 square feet.

The closest option to the total surface area is 42ft, which is option b).

the worlds curropt

the answer is c

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