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August 23, 2014

August 23, 2014

Posted by **Cherie** on Wednesday, November 28, 2012 at 12:18pm.

a) About how much glass did Tracy use?

b) one piece of glass has an area of 100 cm squared and costs $3.65. How much did the glass cost?(assume all pieces can be used

Please help don't understand this!!!

- Math -
**Ms. Sue**, Wednesday, November 28, 2012 at 12:24pmFirst find the surface area of this rectangular prism.

Surface Area of a Rectangular Prism = 2ab + 2bc + 2ac

http://www.math.com/tables/geometry/surfareas.htm

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