Difference between revisions of "Circle"
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*'''circumference''' <math>\displaystyle 2\pi r</math> | *'''circumference''' <math>\displaystyle 2\pi r</math> | ||
==Other Properties== | ==Other Properties== | ||
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* awaiting diagrams to add stuff on inscribed angles + tangents. | * awaiting diagrams to add stuff on inscribed angles + tangents. | ||
Revision as of 18:37, 19 June 2006
Definition
- The locus of points distance (radius) from center
- A cross section of a cone or cylinder parallel to the base. For more on this, see Dandelin Spheres, a commonly used method of deriving all Conic sections.
- for a circle centered at with radius
Formulas
- Area
- circumference
Other Properties
- awaiting diagrams to add stuff on inscribed angles + tangents.