9.3 Volume of Spheres

9.3 Volume of a Sphere

I can find the volume of spheres and solve real-world problems involving spheres.

Watch the video notes on the next slide:

• pause the video to write everything down on your notes sheet.

• rewatch to help understand.

• ask us for help if something doesn't make since.

Match

Match the following

• $$V=\pi r^2h$$

• $$V=lwh$$

• $$V=\frac{\pi r^2h}{3}\ or\ V=\frac{1}{3}\pi r^2h$$

• $$V=\frac{4\pi r^3}{3}\ or\ V=\frac{4}{3}\pi r^3$$

Volume of a cylinder

Volume of a rectangler prism

Volume of a cone

Volume of a sphere

• Volume of a cylinder

• Volume of a rectangler prism

• Volume of a cone

• Volume of a sphere

Multiple Choice

Find the volume to the nearest hundredth using 3.14 instead of Pi.

• 5572.45 cm³

• 506.59 cm³

• 126.65 cm³

• 1393.11 cm³

Multiple Choice

A sphere has the volume of 905 cm. What is the radius of the sphere rounded to the nearest whole number?

• 6

• 9

• 3

• 12