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September 21, 2014

September 21, 2014

Posted by **Amanda** on Tuesday, March 25, 2008 at 7:34pm.

a) Write an algebraic expression for the total of the top surface areas of the three prisms used to make the pedestal.

x

x

x

2x+5

2x+5

Please help, i am so stuck.

- Math, please please help -
**PsyDAG**, Wednesday, March 26, 2008 at 12:01pmThe surface area for each square would be the side multiplied by itself, with the bottom square = x^2.

The second square's surface would be (x-3)^2.

From this, you should be able to determine how to calculate the third square's area.

Then sum these three terms.

I hope this helps. Thanks for asking.

- math -
**sydney**, Thursday, May 26, 2011 at 10:06pmwhat is the perimeter of a square which has sides of four x + six

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