Volume of shapes

[ak21]

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Hey everyone

I was wondering if we need to know how to calculate the volume and/or surface area for shapes like a cylinder, sphere, etc. Thanks!

 

[paul411]

Maybe not for the sphere, but knowing the volume of the cylinder (pi*r^2*h) might be useful.

 

[macsta]

Maybe not for the sphere, but knowing the volume of the cylinder (pi*r^2*h) might be useful.

You need to know the surface area of a sphere to calculate intensity and the cross section area of cylinder to find flow rate.

 

[mitchlucker]

Volume sphere = 4/3 pi r^3

Surface area of a shape= derivative of volume, so for a sphere SA = 4 pi r^2

I can think of any other shapes that would pop up that you couldn't intuitively figure out the surface area or volume to.

 

[liveoak]

not really, just know area = squared, while volume = cubed.

 

[paul411]

the cross section area of cylinder to find flow rate.

aka area of a circle.