A circle is a simple closed shape in Euclidean geometry. It is the set of all points
in a plane that ... by two concentric circles. Arc: any connected part of the circle.
A pictorial index to the parts of a circle. A diagram with links to full definitions.
Radius, diameter, center, and circumference--all are parts of a circle. Let's go
through each and understand how they are defined.
circle. A circle is easy to make: Draw a curve that is "radius" away from a central
point. And so: ... a Tangent. And a part of the circumference is called an Arc.
Definitions and formulas for the radius of a circle, the diameter of a circle, the
circumference (perimeter) of a circle, the area of a circle, the chord of a circle, arc
(Sectors are similar to "pizza pie slices" of a circle.) Semi-circle (half of circle =
half of area). Quarter-Circle (1/4 of circle = 1/4 of area). Any Sector (fractional part
Parts of a Circle - Diameter, Chord, Radius, Arc, Tangent, Intersecting Circles,
Internal and External Tangents.
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Parts of a circle circumference. The boundary line or perimeter of a circle. centre.
Fun math practice! Improve your skills with free problems in 'Parts of a circle' and
thousands of other practice lessons.
Feb 24, 2012 ... What if you drew a line through a circle from one side to the other that does not
pass through the center? What if you drew a line outside a circle ...