Circles
- 2. CIRCLE
• A closed curve figure, all
points of which are
equidistant from a fixed point
called vertex.
- 4. RADIUS
• A segment whose endpoints are in
the center of the circle and the
other endpoint is on the circle.
- 5. Chord
• Is a segment whose
endpoints are any two points
on the circle.
- 8. Tangent
• Is a line in the plane of a
circle that intersects the
circle at exactly one point.
This point is called the point
of tangency.
- 9. Central Angle
• An angle formed by two radii
of a circle with vertex on the
center of the circle.