Posted by **Theresa ** on Wednesday, August 15, 2012 at 5:28pm.

The shorter edges of a 44cm x 25cm metal sheet are joined to form the curve surface of a cylinder. What is the volume of the cylinder? What is the area of metal sheet required to make the top and the bottom cylinder?

- Math -
**Damon**, Wednesday, August 15, 2012 at 5:46pm
h = 25

2 pi r = 44

so r = 22/pi

pi r^2 h = V = pi (22/pi)^2 (25)

area top = pi r^2

area bottom = pi r^2

so

area needed = 2 pi r^2 = 2 pi (22/pi)^2

Now of course sheets of metal usually come rectangular, not circular, so in real life some will get wasted.

## Answer this Question

## Related Questions

- math - A rectangular sheet of metal, of area 440 sq.cm is folded into a cylinder...
- calculus - a rectagular sheet of metal has perimeter 36 meters. maximize the ...
- maths - two cylinders have identical bases with differnt lengths.the length of ...
- math - A rectangular and two circular cut-outs of metal sheet of negligible ...
- Algebra - A box is to be formed from a rectangular piece of sheet metal by ...
- Math - A metal sheet made up the faces of a cube measured 12 cm x 12 cm x 12 cm...
- math - A circular piece of sheet metal has a diameter of 20 in. The edges are to...
- Chemistry - A graduated cylinder contains 56.3ml of water. A metal cylinder is ...
- Calc - cylindrical can is to be made from a rectangular piece of aluminum that ...
- 11th Grade-Calc - cylindrical can is to be made from a rectangular piece of ...

More Related Questions