Approximating Polar Area with Sectors

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This Demonstration illustrates how the area inside a curve defined by a polar function can be approximated using sectors of a circle. Sectors are drawn using either a midpoint or an endpoint approximation.
Contributed by: Abby Brown (January 2015)
Open content licensed under CC BY-NC-SA
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"Approximating Polar Area with Sectors"
http://demonstrations.wolfram.com/ApproximatingPolarAreaWithSectors/
Wolfram Demonstrations Project
Published: January 15 2015