Lesson 8.4

Lesson 8.4

Volume of Spheres​

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​Definition:

Sphere: A sphere is a 3-D object where each point on the object shares the same distance from the center of the sphere. This distance is called the radius.

Subject | Subject

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​How to find Volume of a Shpere:

​Volume is found using the formula:

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Where r is the radius

π is 3.14

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​Why do we not include height like our other formulas?

​What is the volume of a sphere with radius 2?

Multiple Choice

What is the volume of a sphere with radius 3?

• 12π

• 36π

• 108π

• 27π

​What is the volume of a sphere with diameter 10?

Multiple Choice

What is the volume of a sphere with diameter 12?

• 216π

• 72π

• 288π

• 48π

​A sphere has volume 30π. What is the radius?

Multiple Choice

A sphere has volume 36π, what is the radius?

• r = 6

• r = 12

• r = 3

• r = 9

Multiple Choice

A sphere has volume $$\frac{500}{3}\pi$$  , what is the radius?

• r = 100

• r = $$\frac{500}{3}$$  

• r = 5

• r = π

​Find the volume of the figure:

​Conclusion: Write two complete sentences about what you learned.