Posted by **mahogany** on Sunday, September 20, 2009 at 9:50pm.

write an expression for the area of this rectangle 20cm on the top 4cm on the right at the top and 8cm on the left.evaluate your expression to find the area.

- 6th grade -
**stephani**, Sunday, September 20, 2009 at 10:01pm
A= l*W*H

20*4*8= 640

- Math -
**PsyDAG**, Monday, September 21, 2009 at 11:10am
Indicate the subject in the subject box, so tutors with the needed expertise are more likely to respond to your question.

Area is two dimensional, while volume is three dimensional. Otherwise, **stephani** is correct, but the equation should be:

Volume = Length * Width * Height

I hope this helps a little more. Thanks for asking.

- 7thgrade -
**carmen**, Wednesday, February 24, 2010 at 6:58pm
i need help surface area of the cyliner whose radius is 2.8m and height is 5.8m

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