geo circles Flashcards
Chord
A segment whose blank lie on the circle
Diameter
A chord that contains the center of the circle
Secant of a circle
A line that contains a chord
tangent of a circle
A line that lies in the plans of a circle and that intersects the circle at exactly one point
Circle
the set of all the points in a plane at a given distance from a given point is the plane.
Radius
A segment that is on a circle or sphere to the center
Congruent circles
Circles with some radius
Concentric circles
circles that lie in the same plane that share the same center
inscribed angle
an angle whose vertex lies on a circle and whose sides contain chords of the circle
Central angle
angle vertex is the center a circle and whose sides contain radii of the circle
Circumfrance
c= 2pier = pieD
Arc length
l/2pieR m/360
arc of a circle
two points on a circle and the continuous part between the two (2) points
Semicircle
an arc of a circle whose end points are the endpoints of the diameter
Minor arc
an arc of a circle whose length is less than the length of a semicircle of the circle
