Difference between revisions of "Circle"
m (→See Also: sins -> sines) |
m |
||
Line 8: | Line 8: | ||
*'''circumference''' <math>\displaystyle 2\pi r</math> | *'''circumference''' <math>\displaystyle 2\pi r</math> | ||
==Other Properties== | ==Other Properties== | ||
− | * The perpendicular bisector of any chord in the circle is a diameter | + | * The perpendicular bisector of any chord in the circle is a diameter. |
* awaiting diagrams to add stuff on inscribed angles + tangents. | * awaiting diagrams to add stuff on inscribed angles + tangents. | ||
Revision as of 18:26, 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
- The perpendicular bisector of any chord in the circle is a diameter.
- awaiting diagrams to add stuff on inscribed angles + tangents.