Volume of Prisms and Cylinders

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How do I find the volume of each figure or shape to the nearest tenth using 3.14 rr?  Seventh grade math

Mar 24th, 2015

I need the figures. 

but for cylinder the volume is V=pi*r^2*h

For prism, V = A*h, A is the area of the base of the prism, and h is the height.   

Mar 24th, 2015

Regarding Cylinder and Prims.  The Figure of the prism is:  22" by 22" by 42"  The cylinder is: 6.5 cm top, by 16 cm.  to the nearest tenth, using 3.14for rr

Mar 24th, 2015

prism V = 22*22*42 = 20328 cubic inches 

cylinder: V = 3.14*(6.5)^2 * 16 = 2122.64 cubic cm

Mar 24th, 2015

James:

The figures are:  Cylinder is 6.8 cm top, 16 cm  and Prism is 28 m x 10m x 18m  volume to the nearest tenth, use: 3.14 for rr

Mar 24th, 2015

James:

One last question.  How did you come up with the answers, can you break it down for me so that I can show my grandson.

Mar 24th, 2015

prism V = A*h = axbxc 

cylinder V = A*h = pi*r^2 *h

Mar 24th, 2015

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