LAST UNIT Flashcards
The set of all points outside the circle.
Exterior of a circle
A line that is in the same plane as a circle that intersects it at exactly one point.
Tangent of a circle
A segment whose end points lie on a circle.
Chord
The point where the tangent and a circle intersect.
Point of tangency
A line that intersects a circle at two points.
Secant
A line that is tangent to two circles.
Common tangent
The set of all points inside the circle
Interior of a circle
A segment of a secant with at least one endpoint on the circle.
Secant segment
A segment of a secant that lies in the exterior of the circle with one endpoint on the circle.
External secant segment
An angle whose vertex is on a circle and whose sides contain chords of the circle.
Inscribed angle
Where the endpoints of a segment or arc lie on the sides of the angle.
Subtend
An angle whose vertex is the centre of a circle.
Central angle
A segment of a tangent with one endpoint on the circle
Tangent segment
An arc of a circle whose points are on or in the exterior of a central angle.
Major arc
An unbroken part of a circle consisting of two points on the circle between the them.
Arc
