Pi is a number that occurs in many areas of mathematics. It is a number which has a value of approximately 3.1416.
With respect to a circle, pi is the ratio between the circumference and the diameter of a circle.
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This is PI, pi = 3.14159265...... A circle is the round thing, like your pies! The area of a circle is measured using (Pi)(radius to the power of 2). Circumfrance of a circle is (Pi)(Diameter of circle).
Area of a circle = pi*radius squared Circumference of a circle = 2*pi*radius or diameter*pi
Pi can be used to calculate the area of a circle Pi can be used to calculate the circumference of a circle
A circle has no "sides". The "perimeter" of a circle is usually referred to as the circle's "circumference", i.e. the distance around it. The circumference of a circle is [ 2 pi R ], where 'R' is the distance from the center of the circle to its curve. If the circumference of a circle is 12, then 12 = [ 2 pi R ]. R = [ 12 / 2 pi ] = [ 6/pi ]. The area of a circle is [ pi R2 ]. If R = 6/pi, then the area is [ pi R2 ] = [ pi x (6/pi)2 ] = [ pi x 36 / pi2 ] = ( 36/pi ) = 11.459 square centimeters (rounded).
Pi is the circumference of the circle divided by the diameter of the circle. Every circle, that ever was, is, or ever will be.