GeoBlog 5th Period

Geometry beyond the classroom.

Volume of a Prism and a Cylinder

May 9th, 2006 · No Comments
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First, V=volume, B=base area, H=prism height, r=radius, and h=cylinder height

 

The volume of a three-dimensional figure represents how many cubed units can fit into the figure. To find the volume of a prism, multiply the base area times the prism height( V=BH ).

Example 1:V=BH

 The base area would be base times height since the base is a parrallelogram. So, 4 x 5 equals 20. Next, the height is 6. So, now our equation is V=20 x 6. Then, the volume is 120cm cubed. 

 

 

 

 

 

To find the volume of a cylinder, multiply pi times the radius squared times the height( V=Pi x r squared x h ).  

Example 2:V=Pi x r squared x

First, the diameter is 13, so the radius is 6.5, and 6.5 squared is 42.25. Next, the cylinder height is 6. So, Pi x 42.25 x 6 is 253.5Pi ft cubed.

 

 

 By Matt N

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