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How to Calculate the Area of a Sector of a Circle

Choosing the biggest slice of pizza may seem like an intuitive skill but is really a matter of mathematics. A perfect slice, cut from the middle of the pizza, can be thought of as a sector of a circle. A sector has three boundaries, comprising two radii...
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Difficulty:
Moderately Easy

Source:
www.ehow.com

en.wikipedia.org/wiki/Circular_sector

The total

www.virtualnerd.com/pre-algebra/perimeter-area-volume/circles/circle-sector-area-examples/circle-sector-area

Keywords:

www.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-sectors/v/area-of-a-sector-given-a-central-angle

A worked example of finding the

www.mathopenref.com/arcsectorarea.html

The formula used to find the

www.purplemath.com/modules/sectors.htm

Explains formulas for

www.mathwords.com/a/area_sector_circle.htm

index: subject areas. numbers & symbols · sets, logic, proofs · geometry · algebra
· trigonometry ...

www.mathsisfun.com/geometry/circle-sector-segment.html

jwilson.coe.uga.edu/EMT725/Sector/sector.html

Hint: Use the Arithmetic Mean-Geometric Mean Inequality to find the maximum

www.bbc.co.uk/education/guides/ztg9q6f/revision/2

Arc length is a fraction of circumference, calculated using the angle at centre and
diameter.