perimeter of a circle
Perimeter of a circle
Online calculator that calculates the perimeter of a circle from its radius.
The calculator is able to calculate online the perimeter of a circle. The perimeter of a circle is given by the formula `2*pi*r`, where r is the radius of the circle. The perimeter of a circle is the length of the circle. The length calculator supports numeric but also literal expressions.
Calculating the perimeter of a circle
The length calculator is able to calculate the perimeter of a circle, the calculated length is returned in exact form and in approximate form.
Calculation of the perimeter of a circle of radius 3 is done by entering the following formula perimeter_circle(`3`).
Symbolic calculation of the perimeter of a circle
The length calculator is able to do symbolic calculations or literal calculation. To calculate, for example, the perimeter of a circle of radius 1+x, enter the following formula perimeter_circle(`1+x`) ,after calculation the result is returned.
Syntax :
perimeter_circle(radius)
Examples :
perimeter_circle(`3`). , returns `6pi`
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