8th grade Ch 8 L3

Find the volume of each sphere. Round to the nearest tenth.

• 4188.8 cubic feet

• 523.6 cubic feet

• 9043.2 cubic feet

• 1570.8 cubic feet

Find the volume of each sphere. Round to the nearest tenth. 2. (Sphere with radius 6.5 km shown in diagram)

• 1150.3 cubic kilometers

• 900.2 cubic kilometers

• 1800.5 cubic kilometers

• 2000.7 cubic kilometers

Sarah is blowing up spherical balloons for her brother's birthday party. One of the balloons has a radius of 3 inches. Round to the nearest tenth.

• 113.1 cubic inches

• 56.5 cubic inches

• 150.8 cubic inches

• 75.4 cubic inches

Sarah is blowing up spherical balloons for her brother's birthday party. One of the balloons has a radius of 3 inches. Round to the nearest tenth. Suppose Sarah can inflate the balloon at a rate of 200 cubic inches per minute. How long will it take her to inflate the balloon?

• 0.6 minutes

• 1.2 minutes

• 0.3 minutes

• 2.5 minutes

Find the volume of each hemisphere. Round to the nearest tenth.

• 8585.0 cubic inches

• 9043.2 cubic inches

• 7520.5 cubic inches

• 10234.7 cubic inches

Find the volume of each hemisphere. Round to the nearest tenth.

• 7068.6 cubic millimeters

• 5235.9 cubic millimeters

• 9424.8 cubic millimeters

• 7853.2 cubic millimeters

Building on the Essential Question. True or false? The volume of a sphere is two-thirds the volume of a cylinder with the same radius r and height of 2r. Explain your reasoning.

• True

• False

Find the volume of each sphere. Round to the nearest tenth. The sphere has a radius of 14.4 in. What is the volume of the sphere?

• The volume is approximately 12,509.6 cubic inches.

• The volume is approximately 8,000.2 cubic inches.

• The volume is approximately 15,000.0 cubic inches.

• The volume is approximately 10,500.5 cubic inches.

Find the volume of each sphere. Round to the nearest tenth. The sphere has a radius of 6 yd. What is the volume of the sphere?

• The volume is approximately 904.3 cubic yards.

• The volume is approximately 452.2 cubic yards.

• The volume is approximately 113.1 cubic yards.

• The volume is approximately 1508.0 cubic yards.

Find the volume of each sphere. Round to the nearest tenth. The sphere has a radius of 8 mm. What is the volume of the sphere?

• The volume is approximately 2,144.7 cubic millimeters.

• The volume is approximately 1,072.3 cubic millimeters.

• The volume is approximately 4,188.8 cubic millimeters.

• The volume is approximately 1,500.0 cubic millimeters.