Find the volume of a cylinder with a diameter of 8 inches and a height that is three times the radius. Use 3.14 for pi and round your answer to the nearest hundredth.

Question

hayleymeyer · Answer

oh!
i love this kind of stuff!!

hayleymeyer · Answer

Diameter = 8"
Radius = 8"/2 = 4"
Height = 3*4" = 12"
Volume = πr 2 h=3.14⋅(4") 2 ⋅12"=3.14⋅192=602.88

mrnood · Answer

Yeah - well you may love it - but writing the whole solution is
A) Against the code of conduct for this site
B) Almost no help to the asker

hayleymeyer · Answer

oh, im sorry! :(

anonymous · Answer

Since Diameter = 2* Radius, it is 4".  No more just "thinking".  Substitute with "knowing".

Okay, 

Diameter = 8"
Radius = 8"/2 = 4"
Height = ??

anonymous · Answer

It helps if you write stuff out.  This allow you to check for errors and to explain and understand your work.

Diameter = 8"
Radius = 8"/2 = 4"
Height = 3*4" = 12"
Volume = πr2h=3.14⋅(4")2⋅12"=3.14⋅192=602.88

anonymous · Answer

?  If this is the case, you should have gotten 603.18578948924, which, when rounding to the hundreths place is 603.19.