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what is the formula for circle perimeter. The perimeter of a circle often called the circumference is proportional to its diameter and its radiusThat is to say there exists a constant number pi p the Greek p for perimeter such that if P is the circles perimeter and D its diameter then. The circumference can also be calculated by multiplying 2radius with pi p314.
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R is the radius of the circle p is Pi approximately 3142. The word perimeter is also sometimes used although this usually refers to the distance around polygons figures made up of straight line segments. How to Calculate Diameter from Circumference.
The formula for the circumference of a circle is C 2pR where C circumference R Radius of the circle p It is constant pronounced as pi with a value of 227 or 314.
To countcalculate the circle do not forget to use the mathematical constant p phi. The circumference can also be calculated by multiplying 2radius with pi p314. The perimeter formula is one of the easier formulas to remember in math. Substitute the diameter 44 and Pi value as 314 in the above formula.
