What is the area of PI and do you have a favorite recipe?
494689
The area of a pie is 2*pi*r. I like apple pie. The I like to cut an angle of about pi/2 out of the pie and eat it.
408251
Measure the diameter and multiply by pi (3.1415)
572270
triangle area = 1/2(height * width)\n\ncircle area = pi * radius^2
78720
Pi is a name given to the ratio of the circumference of a circle to the diameter. That means, for any circle, you can divide the circumference (the distance around the circle) by the diameter and always get exactly the same number. It doesn't matter how big or small the circle is, Pi remains the same. Pi is often written using the symbol  and is pronounced "pie", just like the dessert.
443794
30 degrees or pi/6 radians
386304
this is exactly the same as a previous question asked about an hour ago. Look back on the open questios, your answer is there\n\nh = 100/pi*r^2\n\nh=7.96
650879
Use string, paper, and a ruler.  The string can represent the perimeter, and you can draw a grid on the circle to represent the units of area.  Just don't get too in depth on the origins of pi.
338526
diameter x pi\npi=3.14159...\n\nthat's it
956315
The simplest way is to cut it into five slices, each with an arc of 72 degrees (or 2*pi/5 radians). You could probably also figure out a way to cut it into strips so that each strip has equal area, but that would be significantly more complicated.
19376
pi has been determined to be endless but i know 31 places after the decimal 3.1415926535897932384626433832795
450577
the answer is pie over 2x plus 7
481766
By definition, pi is the ratio of the circumference of a circle to its diameter. Pi is always the same number, no matter which circle you use to compute it. \nFor the sake of usefulness people often need to approximate pi. For many purposes you can use 3.14159, which is really pretty good, but if you want a better approximation you can use a computer to get it. Here's pi to many more digits: 3.14159265358979323846.
183972
Pi (not pie, lemon pie..) with 4 million decimlas, check the link: \n\nhttp://www.zenwerx.com/pi.php
275576
pi is the circumference of a circle divided by its diameter.  It has been estimated over the years by many mathmeticians but now we have got it down to a lot of decimal places.  try http://en.wikipedia.org/wiki/Pi
543735
A crude approximation to pi. The Babylonians had a better one 355/113 which is 3.141592
889610
3.14159265358979 is as far as I have it memorized.  Yes, I'm a geek.  So your answer is 3.141592653589.\n\nSee?  Easy as pi!
53953
Area of a circle is pi times radius square.\n\nPi is 22/7 and radius is 2 squared\nA=22/7*2^2\nA=22/7*4\nAis apprx. 12.57