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A circular sector or circle sector is the portion of a disk enclosed by two radii and an arc, where the smaller area is known as the minor sector and the larger being the major sector.
Area = θ * π * radius2
A = θ * π * radius2 =
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"Sector of a Circle Area" Math @ STANDS4. STANDS4 LLC, 2019. Web. 21 Oct. 2019. <http://math.stands4.com//calculators/circle-sector-area>.