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CH 10
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Gravity
Terms in this set (21)
Circle
A round plane figure whose boundary consists of points equidistant from the center
center of circle
Point inside a circle that is the same distance from every point on the circle
radius
The distance from the center of a circle to any point on the circle
chord
A segment whose endpoints lie on a circle
diameter
A straight line passing from side to side through the center of a circle or sphere.
concentric circles
circles that lie in the same plane and have the same center
circumference
The distance around a circle
inscribed angle
an angle whose vertex is on a circle and whose sides contain chords of the circle
central angle
an angle whose vertex is the center of the circle
minor arc
An arc of a circle whose measure is less than 180 degrees.
major arc
An arc of a circle whose measure is greater than 180 degrees.
semi circle
half of a circle/ 180
congruent arcs
arcs that have the same measure and are in the same circle or in congruent circles
adjacent arcs
arcs of the same circle that have exactly one point in common
arc length
a portion of the circumference of a circle
intercepted arc
The arc that lies in the interior of an inscribed angle and has endpoints on the angle.
tangent
A line in the plane of a circle that intersects the circle in exactly one point.
secant
A line that intersects a circle in two points
chord segments
when two chords intersect inside a circle, each chord is divided into two segments
secant segment
a segment that contains a chord of a circle and has exactly one endpoint outside the circle
tangent segment
a segment of a tangent with one endpoint on the circle
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