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can someone please help me with this ,,,, Idk if I am adding something wrong or what :(

Guest Sep 7, 2018
 #1
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in general the formula for the volume of a cylinder is

 

\(V = \pi r^2 h\)

 

looking at #1 we have \(V = \pi (12^2) (8) \approx 3619.115 \)

 

it looks like you squared the diameter instead of the radius

 

Looking at #2 \(V = \pi (7.5^2)(4) = 706.858\)

 

again you used the diameter instead of the radius

 

You got the 3rd one correct because they gave you the radius, not the diameter, in the diagram.

Rom  Sep 8, 2018

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