Regular polygon. Incircle and circumcircle

This online calculator determines parameters of circumcircle and incircle of a regular polygon

This online calculator determines parameters of circumcircle and incircle of a regular polygon.

Incircle radius
$r_i=\frac{a}{2tan(\pi/n)}$

Polygon area
$S_p=\frac{1}{2}nar_i$

Circumcircle radius
$r_c=\frac{a}{2sin(\pi/n)}$

Polygon area
$S_p=\frac{na^2}{4tan(\pi/n)}$

Number of sides

Side length

Calculation precision

Digits after the decimal point: 2

Incircle radius

Incircle area

Polygon area

Area ratio

Side length

Number of sides

Calculation precision

Digits after the decimal point: 2

Circumradius

Circumcircle area

Polygon area

Area ratio

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PLANETCALC, Regular polygon. Incircle and circumcircle

Timur2020-11-03 14:19:28

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