The value of pi is a circle's circumference divided by its diameter and pi is an irrational number.
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It is used in finding the circumference and area of a circle. Circumference = 2*pi*radius or pi*diameter measured in linear units Area = pi*radius2 measured in square units
pi radians is 180 degrees.
16*pi measured in linear units
Pi is not measured in degrees because its value is a circle's circumference divided by its diameter which is about 3.14
No they do not unless it is a circle with radius (180/pi) and the angles are measured in degrees, or a circle with radius (1/pi) and the angles are measured in radians.