Volume of Cylinders, Cones, and Spheres

The cylinder is made by extending a __________

• Circle

• Oval

• Triangle

• Square

Or as Baskin teaches it,

• 3.14 · r · r

• 3.14 · 2 · r

Type 12.56 · 10 into your calculator what is the answer?

(a)  

What shape was rotated 360° to form a sphere?

• Circle

• Triangle

• Square

• Hexagon

Or as Baskin teaches it,

• 3.14 · r · r · 4 ÷ 3

• 3.14 · r · r · r · 4 ÷ 3

• 3.14 · r · r · h ÷ 3

Or as Baskin teaches it,

• 3.14 · r · r · h

• 3.14 · r · r · h ÷ 3

• 3.14 · r · r ÷ 3

Why do we only need the radius?

• The height is the diameter

• Click the other one

Why is it 1/3 or ÷ 3?

• It took 3 cones to make a cylinder

• It took 3 cylinders to make a cone

• It's made up