[OhioKyle]

Hey everyone:

This isn´ t homework help I´m just getting prepared for the next semester. I was researching this online and in books and the nearest GOOD library is 20 miles away so I decided a helpdesk would be the best option.

To the point. I have already learned how to calculate the surface area to volume ratio of simple shapes, such as cubes or spheres but here is something I do not understand at all.
If the diametre of "x" is 5 inches and the height of "x" is 2 inches and the volume of x is 3 cubic inches then what is the surface are to volume ratio?

Please post a formula or something, or even better show me how to calculate the thing in steps. Please, this isn´t homework help, I´m just getting ready for the stuff we are going to learn in a month.

Thanks,
OhioKyle

[EuRa]

Well I guess diametre would be width?

Sounds like they gave you width and height, but not length.

10x = 3, so divide by 10 on both sides to get x. Then you can find your surface area, and get your ratio.

Is this what you are looking for?

[Wondergirl]

Draw a picture first.

[Wondergirl]

What geometrical figure is it? Doesn't that make a difference too?

Cube side3
Rectangular Prism side1 * side2 * side3
Sphere (4/3) * pi * radius3
Ellipsoid (4/3) * pi * radius1 * radius2 * radius3
Cylinder pi * radius2 * height
Cone (1/3) * pi * radius2 * height
Pyramid (1/3) * (base area) * height
Torus (1/4) * pi2 * (r1 + r2) * (r1 - r2)2

[juhi2011]

Go and refer the site Surface Area Formulas