# Circular sector

Calculates area, arc length, perimeter, and center of mass of circular sector

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#### Michele

Created: 2011-05-06 20:21:55, Last updated: 2020-12-11 12:22:53

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Sector is the portion of a disk enclosed by two radii and an arc.

#### Circular sector

Angle in degrees
Digits after the decimal point: 2
Arc length

Perimeter

Center of mass

Area

Sector area:
$A= \frac {R^2\alpha}{2}$
Arc length:
$L = {\alpha}{R}$
Perimeter:
$P = ({\alpha+2}){R}$
Center of Mass:
$M = \frac{4R}{3\pi}$

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PLANETCALC, Circular sector