Posted by **martha** on Thursday, March 1, 2007 at 5:15pm.

ok it asks me 2 find the lateral area of the cylinder ( the radius is 5 n the hight is 5) can some 1 help me with this please

392.5

Prinness, I think that 392.5 is pi*r^2*h, or the volume of the cylinder. This question asks for the lateral area.

Lateral area is the area of the side of the cylinder, not of one of the circles at the ends. Picture standing the cylinder on its end like a soup can, and cutting down the side from one end to the other in a vertical line. If you were to remove the ends and flatten out that side of the can, you would get a rectangle with the same height as the original cylinder and a length that is the same as the circumference of one of the ends.

This means that the formula you want to use

is Lateral area = (height)(circumference)

= h * (2*pi*r)

## Answer This Question

## Related Questions

- maths - A hallow sphere has a volume of xcm^3 and a surface area of ycm^2 if the...
- Geo - What is the altitude of this cylinder: B ==> C? A. line BC B. segment ...
- calculus - Find the radius and hight of cylinder with voume 64π and radius ...
- Geometry - If the edges of a rectangular prism are 8cm, 6cm, and the diagonal is...
- Geometry - The Area Of The Rectangle Is 392 Inches Squared. What Is The Radius ...
- geometry - find the surface area of the figure below. A cylinder which has a ...
- Math - 6. If the length of the radius of a cylinder is tripled, which statement ...
- math - 2. find the lateral area for the given prism: 26 cm , 6 cm, 15 cm A. 1,...
- MATH QUIZ PLS HELP!!! - 1.Find the lateral area of a cone with a radius of 7 ft...
- math - A right circular cylinder is to be inscribed in a sphere of given radius...

More Related Questions