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# If i have a 72 cubic inch CYLINDER that is 11 inches long, what is diamater of this cylinder? Answered

If i have a 72 cubic inch CYLINDER that is 11 inches long, what is diamater of this cylinder?

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## 8 Replies

Jayefuu (author)2009-06-29

Volume = Pi * radius2 * height

radius2 = volume \ height = 72\11 = 6.54

radius = 6.540.5 = 2.558 inches
diameter = 2 * radius = 5.116 inches

Jayefuu (author)2009-06-29

Stupid formatting. You get the picture :)

Bosun Rick (author)2009-07-04

The Formula is wrong! Pie are round, Cake are square! LOL

kelseymh (author)2009-06-29

Too bad "CHEAT" isn't one of the flag options.

Kiteman (author)2009-06-29

If you have measured the length, then you should be able to use the same ruler to measure the diameter.

theRIAA (author)2009-06-29

I hate word problems that make you look like a moron... "A building is 300ft tall and casts a shadow on your friend, you measure that your friend is 200ft away from the building and casts a shadow that is 40ft long. How tall is your friend."