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A cube has side length 5 in. A rectangular prism has dimensions 6 in. by 6 in. by 3 in. Which object has greater volume? Which object has great surface area?

Question

A cube has side length 5 in. A rectangular prism has dimensions 6 in. by 6 in. by 3 in.

Which object has greater volume?

Which object has great surface area?

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Solution

To answer these questions, we first need to calculate the volume and surface area of both the cube and the rectangular prism.

  1. Volume of the cube: The formula for the volume of a cube is side^3. So, the volume of the cube is 5^3 = 125 cubic inches.

  2. Volume of the rectangular prism: The formula for the volume of a rectangular prism is lengthwidthheight. So, the volume of the rectangular prism is 663 = 108 cubic inches.

Therefore, the cube has a greater volume than the rectangular prism.

Next, let's calculate the surface area:

  1. Surface area of the cube: The formula for the surface area of a cube is 6side^2. So, the surface area of the cube is 65^2 = 150 square inches.

  2. Surface area of the rectangular prism: The formula for the surface area of a rectangular prism is 2*(lengthwidth + widthheight + heightlength). So, the surface area of the rectangular prism is 2(66 + 63 + 3*6) = 216 square inches.

Therefore, the rectangular prism has a greater surface area than the cube.

This problem has been solved

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