The first time the symbol Pi was first used for Pi was in ancient Greece in their numbers. The symbol "π" was number 80 in Greece.
When you multiply pi times 25, the answer is: 78.53981625
Area of a circle, A = (pi)(r^2). Since the d = 10, then r = 10/2 = 5. So A = (pi)(5^2)= 25(pi) or A = 25(3.141) = 78.525.
pi+pi is 6.28. all that you have to do is add up the numbers.-fromama fromamzez.webs.com
Area = (pi) R2 = (pi) (1/2 diameter)2 = 25 pi = 78.54square feet (rounded)
The first numbers of pi is 3.14159265358979323846264338327950288419716939937510 58209749445923078164062862089986280348253421170679
3.1415926535897932384626433832795 - is the value of Pi to 31 decimal places.
The first twelve numbers of pi are 3.14159265358
The sum of the first sixteen numbers of pi is 80.
3.1415
3.1415926535897932384626433832795028841971693997510
The first four numbers in pi are 3.141. Backwards, the first four numbers are 141.3. Pi has been calculated to over a million digits.
π (pi) = 3.141592653
some of the first numbers are 3.14159265358979323846
The first 20 digets after the dot in pi are: 3.14159265358979323846
3.1415926535897932384626433832795
The first time the symbol Pi was first used for Pi was in ancient Greece in their numbers. The symbol "π" was number 80 in Greece.