That's the formula for the area of a circle.
Leaving in terms of pi means, through out the whole answer you have the pi symbol when you sub and compute. So basically heres an example: 2pir r=14 2pi14 28pi your answer is 28 with the pi symbol on the right but I dont know how to write it on the computer was that of help?
Pi is used in the equation to determine the volume of a cylinder with r being the radius and h being the height of the clynder: V = Pi*r2h
10001/999900
Radians are measured in terms of pi. Pi = 3.14 (or 180 degrees), so 1 degree = Pi/180 or 0.017 radians. To convert from radians to degrees divide by pi and multiply by 180. For example, 4.71 radians (3Pi/2 in terms of Pi) would be 270 degrees. Reference: Unit Circle hope this article will answer your question. http://betterexplained.com/articles/intuitive-guide-to-angles-degrees-and-radians/ Happy Math
It means a rotation of pi radians (180 degrees).
Nothing!!!!! , Because 'pie' is the pie that you eat, like Apple pie, or Meat pie. If you mean 'pi' , note the spelling, then this refers to the constant of proportion of circles. Circumference = constant of proportion X diameter, Algebraically written as : - C = kd Where 'k' os the constant of proportion, and for circles it is given the name 'pi' For circles however large or small have 'pi' as the constant. 'pi' has the numerical value of 3.141592... Which is an IRRATIONAL numbe. and is approximated to 3.14, 3.1416, 22/7 for school learning purposes. 'pi' is the small case letter 'p' from the Classical Greek Alphabet, and refers to constant of PROPORTION. As a Classical Greek letter, it looks like a set of football goalposts, with a curved leg on one side. Casually , IRRATIONAL means that the decimal digits recur to infinity, AND the decimal digits are NOT in any regular order. What you are given in school ( 3.14 etc.,) is only an approximation. Supa Dupa computere have calculated 'pi' to at least 50 billion places and still going!!!!! Hope that helps!!!!!
pi is a symbol that we all use and it looks something like this....
If you are referring to the number that is used to describe the ratio of a circle's circumference to its diameter, then, yes, in terms of math it is spelled pi. Pi equals out to about 3.141529+ and goes on infinite (never ending).
The number for pi is: 3.1415926535897932384626433832795
3.14
3.141592653789 etc
3.14159265 etc. Correct spelling is: Pi no 'e'
principal(in terms of math)- the amount you borrow or deposit
Pi r 2. Pi is a numerical constant roughly 3.142. r is the radius of a circle. 2 in this case is the square of the radius. All this adds up to the area of a circle. Area=Pi x (radius squared)
half pi is 1/2 x 3.14 = 1.57
pi (literally and i dont mean the eating pie. by pi i mean in math it never ends)