Category:Definitions/Circles
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This category contains definitions related to Circles.
Related results can be found in Category:Circles.
In the words of Euclid:
- A circle is a plane figure contained by one line such that all the straight lines falling upon it from one point among those lying within the figure are equal to one another;
(The Elements: Book $\text{I}$: Definition $15$)
Subcategories
This category has the following 19 subcategories, out of 19 total.
A
- Definitions/Annuli (12 P)
C
- Definitions/Circumcenters (4 P)
- Definitions/Circumcircles (1 P)
- Definitions/Circumscribe (9 P)
E
I
- Definitions/Inscribe (3 P)
L
O
P
- Definitions/Point-Circles (3 P)
- Definitions/Power of Point (2 P)
T
Pages in category "Definitions/Circles"
The following 112 pages are in this category, out of 112 total.
A
C
- Definition:Center of Circle
- Definition:Center of Semicircle
- Definition:Central Angle
- Definition:Chord of Circle
- Definition:Chord of Contact on Circle
- Definition:Chord of Contact/Circle
- Definition:Circle
- Definition:Circle Circumscribed around Polygon
- Definition:Circle Inscribed in Polygon
- Definition:Circle of Apollonius
- Definition:Circle/Arc
- Definition:Circle/Arc/Major
- Definition:Circle/Arc/Minor
- Definition:Circle/Arc/Subtend
- Definition:Circle/Center
- Definition:Circle/Chord
- Definition:Circle/Circumference
- Definition:Circle/Circumference/Concave
- Definition:Circle/Circumference/Convex
- Definition:Circle/Diameter
- Definition:Circle/Equality
- Definition:Circle/Equidistant
- Definition:Circle/Focus
- Definition:Circle/Radius
- Definition:Circle/Semicircle
- Definition:Circle/Semicircle/Center
- Definition:Circle/Semicircle/Diameter
- Definition:Circular Cylindrical Surface
- Definition:Circumcenter
- Definition:Circumcenter of Triangle
- Definition:Circumcircle
- Definition:Circumcircle of Triangle
- Definition:Circumference of Circle
- Definition:Circumradius of Triangle
- Definition:Circumscribe
- Definition:Circumscribe/Circle around Polygon
- Definition:Circumscribe/Polygon around Circle
- Definition:Concave Circumference of Circle
- Definition:Concentric/Circles
- Definition:Concyclic Points
- Definition:Conic Section/Focus-Directrix Property/Circle
- Definition:Conic Section/Intersection with Cone/Circle
- Definition:Conic Section/Reduced Form/Circle
- Definition:Conjugate Points (Geometry)/Circle
- Definition:Convex Circumference of Circle
E
I
- Definition:Imaginary Circle
- Definition:Incenter of Polygon
- Definition:Incenter of Triangle
- Definition:Incircle
- Definition:Incircle of Triangle
- Definition:Incircle/Inradius
- Definition:Inradius of Polygon
- Definition:Inradius of Triangle
- Definition:Inscribe
- Definition:Inscribe/Circle in Polygon
- Definition:Inscribe/Polygon in Circle
- Definition:Interior of Circle
- Definition:Internal Tangent
O
P
S
- Definition:Sector
- Definition:Sector/Angle
- Definition:Segment of Circle
- Definition:Segment of Circle/Angle in Segment
- Definition:Segment of Circle/Angle of Segment
- Definition:Segment of Circle/Base
- Definition:Segment of Circle/Similar
- Definition:Semicircle
- Definition:Semicircle/Also known as
- Definition:Similar Segments