Posted by Emily on Saturday, March 8, 2008 at 10:01pm.
Sorry I'm posting again I just thought it would increase my chances of getting my question answered if i posted it in the mathematics portion of the website also.

One can of pumpkin pie mix will make a pie of diameter 8 in. If two cans of pie mix are used to make a larger pie of the same thickness, find the diameter of that pie. Use sqrt 2 is equal to about 1.414

math  drwls, Saturday, March 8, 2008 at 10:31pm
The volume of the larger pie will be double. Since the height of the filling is the same, the area will be double. To double the area, increase the diameter by a factor of sqrt 2 = 1.414.
Multiply 8 inches by that for the answer.

math  drwls, Sunday, March 9, 2008 at 5:50am
I mean multiply 8 by sqrt2, which is 1.414. This gives you 8 sqrt2 = 11.31 inches
Compare the areas of an 8 inch pizza and an 11.31 inch pizza. One is twice the other.
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