find the circumference of a circle with the given radius or diameter use 3.14 for pie?
550777
So you know, it's pi, not pie. And, by definition, pi is the ratio of a circle's circumference to its diameter. So pi = C/D. Or, C = (pi)D. Or, more commonly, C = 2(pi)r.\n\nArmed with this knowledge, we see that:\n\n1) C = 2(pi)(3) = 18.84\n2) C = (pi)(3) = 9.42\n3) C = 2(pi)(6) = 37.68\n4) C = (pi)(5) = 15.7\n5) C = 2(pi)(10) = 62.8\n\nI hope this helps! =]
40559
Just what are you asking? \n\nIf this were the Baking section, then you owe someone two pies. \n\nIf you are talking Math (this section), then I presume you are talking about PI (the value used in Circumference = 2 (PI) * radius, Area = PI * r^2, Volume = (1/3) PI * r^3). Following these derivations, I have no clue where PI^5 lies in Geometry.\n\nOr, finally, if you are thinking 3*PI - 5*PI, you get -2 * PI, or -2 * 3.14159..., = -6.28318...
408251
Measure the diameter and multiply by pi (3.1415)
543954
1/3 x pie x radius (power of 2) x height
352163
The circumference divided by pi then get the square root of that.
249445
The constant pi times the radius squared
41743
It's "circumference", and it's the boundry of a circular area, and actually, it's not that hard. \n\nThe circumference is the length of the outside boundry of a circle expressed as 2*pi*r ("pi" = the pi constant, sometimes abreviated as 3.14 and "r" is the radius or half of the distance across the circle. You can also do simply ). It's the length you'd get if you were to wrap a string around a balloon and measure it.
42714
3.14159 26535 89793 23846 26433 83279 50288 41971 69399 37510 \n\n= "pi."  This number is calulated by dividing a circle's circumference by its diameter.  This number, or ratio, holds steady for all sizes of circles.
593161
Simply use the corresponding equations. The circumference of a circle is Pi times the diameter and the area of a circle is Pi/4 times the diameter squared.\nThus doubling the diameter doubles the circumference, and quadruples the area.
385118
the circumference divided by 2 x PI
71470
3.1416 X radius squared\n12" circle= 6" radius\n6" X 6" = ? X 3.1416(pi)= ?\nGot the picture?\nNot going to do your homework for you.\n\n(sorry Lucky Lady but pi X diameter is the circumference)
447001
pie times radius squared
570380
π is the ratio of the circumference of a perfect circle to the  diameter. πD=circumference therefore π=(circumference/D.\n\nIt is a never ending number that goes 3.141592654...\n\nI have a whole book (30pages) of π printed. I had to finish my ink!
236956
pi times the radius squared
97617
3.14159\nThe square root of (pizza) pie.
620052
You can calculate pi, the ratio of circumference to diameter using several formulae:\n\npi = 4(1 - 1/3 + 1/5 - 1/7 ...)\n\npi = (3*sqrt(3))/4 + 24(1/12 - 1/(5*2^5) - 1/(28*2^7)...)\n[ the nth coefficient can be found using:\n0.25(2n -1) sqrt(x-x^2) - 0.125 * asin(1-2n) ]\n\nnote: pi does NOT equal exactly 22/7.
289682
circumference = pie times diameter\nradius is half of the diameter\n\nso if you have either the circumference or the diameter, you can figure it out.