Posted by **mike** on Wednesday, May 14, 2008 at 12:41pm.

How do i find the lateral area and the surface area of a rectangular prism

with the height of 8.5"

the width 4"

the depth 3.25"

I don't want you to do it for me i want to know what formula or how i start to solve for those two things please

- math -
**Ms. Sue**, Wednesday, May 14, 2008 at 12:49pm
http://library.thinkquest.org/20991/geo/solids.html

- math -
**LT**, Wednesday, May 14, 2008 at 1:06pm
ok i found how to do the surface area but i still don't know what to use for the lateral area

- math -
**Ms. Sue**, Wednesday, May 14, 2008 at 1:15pm
This is from the above site:

"The lateral area L (area of the vertical sides only) of any right prism is equal to the perimeter of the base times the height of the prism (L = Ph)."

If the perimeter of the base is 10 inches and the height is 3 inches, then the lateral area is 30 inches.

- math -
**Reiny**, Wednesday, May 14, 2008 at 3:08pm
the lateral area of a solid is the surface area with the base excluded.

So if it says to find the surface area of a cone you would include the circle, but if you are to find the lateral area of a cone you would find only the top part surface.

## Answer This Question

## Related Questions

- math - Find the lateral and surface area of the right rectangular prism whose ...
- math - Find the lateral and surface area of the right rectangular prism whose ...
- Geometry - What is the lateral surface area of the prism? Rectangular prism ...
- geometry - The lateral area of a prism is 144cm^2 (lateral area is surface area ...
- math - Find the lateral and surface area of the right rectangular prism whose ...
- math - Find the lateral and surface area of the right rectangluar prism whose ...
- math PLEASE HELP!!!!! - Rectangular Prism: Length: 41 ft Width: 32 ft Height: 49...
- Math - A rectangular prism has a volume of 960cm. It's width, length, and ...
- math - A rectangular prism has a length of 8 in and a width of 7 in. The lateral...
- geometry - If a rectangular prism has a surface area of 198 square feet, a ...

More Related Questions