Well, you can just use 3.14 for pi, so 21•3.14=65.94
It is: 21*pi feet
3.14159265358979323846
(21 pi) is.
Circumference = 21*pi
Diameter of the circle: 21/pi = 6.685 miles rounded to 3 decimal places
Life of Pi was released on 11/21/2012.
The movie Life of Pi was released on November 21, 2012.
Circumference = Diameter x pi = 21 pi = 65.973 inches(rounded)
Pi - soundtrack - was created on 1998-07-21.
It is: 21*pi feet
Area of a circle = (pi) R2 = (21)2 pi = 1,385.4square miles (rounded)
3.14159265358979323846
3.14159265358979323846
(21 pi) is.
The circumference of a circle is diameter times pi or pi times the radius doubled. Pi is equivalent to 22/7. Multiply 21 by 3.14 which gives you 65.999999... 7
Circumference = 21*pi
Area of a circle = pi*radius2 in square units