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Web Results

en.wikipedia.org/wiki/Circle

A

www.mathgoodies.com/lessons/vol2/geometry.html

A

www.khanacademy.org/math/basic-geo/basic-geo-area-and-perimeter/area-circumference-circle/v/parts-of-a-circle

Radius, diameter, center, and circumference--all are

www.emathzone.com/tutorials/geometry/the-circle-and-parts-of-a-circle.html

www.coolmath.com/reference/circles-geometry

Definitions and formulas for the radius

www.onlinemathlearning.com/diameter-of-circle.html

www.mathplanet.com/education/geometry/circles/basic-information-about-circles

The points within the hula hoop are not

www.regentsprep.org/regents/math/geometry/gp16/circlesectors.htm

(Sectors are similar to "pizza pie slices"

www.ck12.org/book/CK-12-Basic-Geometry-Concepts/section/9.1/

www.ixl.com/math/grade-4/parts-of-a-circle

Fun math practice! Improve your skills with free problems in '

More Info

www.mathopenref.com

A pictorial index to the

www.algebralab.org

Introduction: A

www.mathsisfun.com