The area of a circle is pi times the square of the radius. Pi has no relationship with the area of a polygon.
pi
pi is approximately 3.14, and is the ratio of any circle's diameter to its circumference.
Circumference of a circle is 2 x Pi x the radius
diameter times pi(3.14159) equals cicumference
circumference of of circle / Radius of the circle
The area of a circle is pi times the square of the radius. Pi has no relationship with the area of a polygon.
pi X diameter = circumference of the circle.
Pi is the relationship between the diameter and the circumference of a circle.
pi
pi is approximately 3.14, and is the ratio of any circle's diameter to its circumference.
Circumference of a circle is 2 x Pi x the radius
Area = (Circumference squared)/4 pi Circumference = 2 sqrt(Area times pi)
The circumference and diameter
diameter times pi(3.14159) equals cicumference
Pi ( 3.142 approx.) is the amount of times the diameter of a circle can be measured along the circumference of a circle. We know that Pi multiplied by the diameter of the circle is equal to it circumference. So we write C=PiD This means, as it says above, that a certain number of "Pi's" will be equal to the circumference.
area = pi*r2 where pi is the irrational number approximated by 3.14159