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Geometry Vocabulary Page 581-Chapter 10
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Gravity
Terms in this set (17)
Arc
a part of a circle that is defined by two endpoints
Central angle
an angle that intersects a circle in two points and has its vertex at the center of the angle
Chord
a segment with endpoints on the circle
Circle
the locus of all points in a plane equidistant from a given point called the center of the circle
Circumference
the distance around a circle
Circumscribed
the circle contains all the vertices of a polygon
Diameter
a chord that passes through the center of a circle
Inscribed
all the vertices of a polygon lie on the circle
Intercepted
an angle intercepts an arc only if the endpoints of the arc lie on the angle, all points of the arc except the endpoints are in the interior of the circle, each side of the angle contains and endpoint of the arc
Major arc
an arc with a measure greater than 180
Minor arc
an arc with a measure less than 180
Pi
an irrational number represented by the ratio of the circumference of a circle to the diameter of the circle
Point of tangency
for a line that intersects a circle in only one point, the point at which they intersect
Radius
a segment with endpoints that are the center of the circle and a point on the circle
Secant
any line that intersects a circle inn exactly two points
Semicircle
and arc that measures 180
Tangent
a line in the plane of a circle that intersects the circle in exactly one point, the point of intersection is called the point of tangency
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