One revolution around a circle is 360 degrees or 2*pi radians. To solve for revolutions, you set up the ratio of revolutions to radians as follows and solve for x:
x/(pi/2) = 1/(2*pi)
x=(pi/2)*(1/2*pi) = 1/4 revolutions
One complete revolution is equal to (2\pi) radians. Therefore, to find out how many revolutions equal (\pi) radians, you divide (\pi) by (2\pi), which gives you (\frac{1}{2}). Thus, (\pi) radians is equivalent to half a revolution.
180
pi^2
Pi is approximately equal to 3.141592652389793238462.
Pi can't be exactly expressed as a fraction, or as a decimal. It is approximately equal to 3.14159265, but for many practical calculations you may want to round it to 3.14, or to 3.1416.
One complete revolution is equal to (2\pi) radians. Therefore, to find out how many revolutions equal (\pi) radians, you divide (\pi) by (2\pi), which gives you (\frac{1}{2}). Thus, (\pi) radians is equivalent to half a revolution.
1/2 revolution. A complete revolution is 2 x pi radians.
1 revolution = 2 x pi radians. Therefore, 1 radian = 1 / (2 x pi) revolutions.
20 times pi There are 2 pi radians in one revolution.
One revolution = tau radians (or 2*pi radians).
180
180
There are 2π radians in one complete revolution.
Pi is not equal to 6. It is equal to 3.14159...
pi^2
Pi is approximately equal to 3.141592652389793238462.
There are very many calculations which use pi. Many of them are in geometry: areas of circles and ellipses, volumes of solids of revolution. But there are also many applications in statistics.