Understanding the Volume of Spheres

What is the formula for finding the volume of a sphere?

• 2 π r^3

• π r^3

• 4/3 π r^3

• 4/3 π r^2

If the radius of a sphere is 7, what is the volume rounded to the nearest hundredth?

• 1436.78 cubic units

• 1436.77 cubic units

• 1436.75 cubic units

• 1436.76 cubic units

How do you express the volume of a sphere in terms of pi when the radius is 9?

• 972 π cubic units

• 729 π cubic units

• 1080 π cubic units

• 810 π cubic units

What is the radius of a sphere if its diameter is 8?

• 8

• 2

• 4

• 16

A ball of yarn has a diameter of 5 yards. What is the volume rounded to the nearest hundredth?

• 64.45 cubic yards

• 67.45 cubic yards

• 65.45 cubic yards

• 66.45 cubic yards

If a sphere has a volume of 2304 π cubic inches, what is its diameter?

• 24 inches

• 12 inches

• 18 inches

• 36 inches

What is the radius of a sphere with a volume of 36 π cubic inches?

• 9 inches

• 6 inches

• 3 inches

• 12 inches

What operation is used to isolate the radius when given the volume of a sphere?

• Division

• Subtraction

• Multiplication

• Addition

How do you find the cube root of a number using a calculator?

• Multiply the number by 3

• Raise the number to the power of 1/3

• Divide the number by 3

• Raise the number to the power of 1/2

What is the first step in solving for the radius when given the volume of a sphere?

• Multiply by pi

• Divide by pi

• Add pi

• Subtract pi