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Geometry- Circles
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Terms in this set (14)
Chord
A line segment in the circle that intersects two sides of the circle.
Tangent
A line that intersects the circle at one point.
Inscribed Angle
An angle whose vertex is on the circle and is half the arc it intersects.
Central Angle
An angle whose vertex is at the center of the circle and is equal to the arc it intersects.
Secant
A line that intersects the circle twice.
Interior Angle
An angle inside the circle, but not at the center.
Exterior Angle
An angle outside the circle, that intersects two arcs.
Radius
A point from the center of a circle to an endpoint on the circle
diameter
a point that passes through the center of a circle with 2 endpoints on the circle.
point of Tangency
The tangent only touches the circle at one point is known as the ?
minor arc
Arc measure less than 180 degrees
Major arc
an arc measure greater than 180 degress
semicircle
An arc measure exactly 180 degrees
sector
a portion of a circle defined by 2 radii and an arc
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