Posted by **Mary** on Wednesday, March 30, 2011 at 9:44pm.

Which of the following formulas could be used to calculate the combined area,x of threw identical circles?

A. X= 3pie r squared

B. X= 6 pie r

C. X= pie r squared/ 3

D. X= 6 r/ pie

- Math -
**Ms. Sue**, Wednesday, March 30, 2011 at 9:47pm
Do you mean pi (not pie)?

Do you mean three (not threw)?

- Math -
**Mary**, Wednesday, March 30, 2011 at 9:55pm
Yes, sorry about that.

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**Ms. Sue**, Wednesday, March 30, 2011 at 10:00pm
The formula for the area of a circle is

A = pi * r^2

Which of your choices shows the formula for the areas of three identical circles?

I'll be glad to check your answer.

- Math -
**Mary**, Wednesday, March 30, 2011 at 10:02pm
A= 3pi r squared?

- Math -
**Ms. Sue**, Wednesday, March 30, 2011 at 10:03pm
Right! :-)

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**Anonymous**, Monday, March 19, 2012 at 10:46pm
mrs, smith baked 4 pies.she cut each pie in to 8 equal pieces. if 5 of pie were eaten,what fraction of the pies is left?

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