Volume of a Three-Dimensional Figure
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SSAT Upper Level Quantitative › Volume of a Three-Dimensional Figure
Find the volume of a cube with a side length of .
Explanation
Write the formula for the volume of a cube.
The correct answer is .

The above diagram shows a rectangular solid. The shaded side is a square. Give the volume of the solid.
Explanation
A square has four sides of equal length, so, as seen in the diagram below, the length, width, and height of the solid are 20, 10, and 10.

The volume of the solid is the product of the three dimensions:
.

The above diagram shows a rectangular solid. The shaded side is a square. Give the volume of the solid.
Explanation
A square has four sides of equal length, so, as seen in the diagram below, the length, width, and height of the solid are 20, 10, and 10.

The volume of the solid is the product of the three dimensions:
.
Find the volume of a regular tetrahedron that has a side length of .
Explanation
Use the following formula to find the volume of a regular tetrahedron:
Now, plug in the given side length.
Find the volume of a prism that has a right triangle base with leg lengths of and
and a height of
.
Explanation
To find the volume of a prism, multiply the area of the base by the height.
Find the volume of a cube with a side length of .
Explanation
Write the formula for the volume of a cube.
The correct answer is .
Find the volume of a prism that has a right triangle base with leg lengths of and
and a height of
.
Explanation
To find the volume of a prism, multiply the area of the base by the height.
Find the volume of a regular tetrahedron that has a side length of .
Explanation
Use the following formula to find the volume of a regular tetrahedron:
Now, plug in the given side length.
Find the volume of a regular tetrahedron that has a side length of .
Explanation
Use the following formula to find the volume of a regular tetrahedron:
Now, plug in the given side length.
Find the volume of a regular tetrahedron that has a side length of .
Explanation
Use the following formula to find the volume of a regular tetrahedron:
Now, plug in the given side length.