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Regular polygon. Incircle and circumcircle

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

person_outlineTimurschedule2011-06-24 22:18:41

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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)}

PLANETCALC, Incircle of a regular polygon

Incircle of a regular polygon

Digits after the decimal point: 2
Incircle radius
 
Incircle area
 
Polygon area
 
Area ratio
 



PLANETCALC, Circumcircle of a regular polygon

Circumcircle of a regular polygon

Digits after the decimal point: 2
Circumradius
 
Circumcircle area
 
Polygon area
 
Area ratio
 

Tags: circle Circumcircle Geometry incircle Math polygon radius regular polygon
Creative Commons Attribution/Share-Alike License 3.0 (Unported) PLANETCALC, Regular polygon. Incircle and circumcircle

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