perimeter of a circle

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Online calculator that calculates the perimeter of a circle from its radius.
perimeter_circle(`3`). , returns `6pi`

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`

See also
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