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Geometry 10 Vocab
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Gravity
Terms in this set (18)
arc
a part of a circle that is defined by two endpoints
center
a given point in the middle of the circle, where a circle is the locus of all points in a plane equidistant from the center
central angle
an angle that intersects a circle in two points and has its vertex at the center of the circle
chord
for a given circle, a segment, with endpoints that are 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
a circle is circumscribed about a polygon if the circle contains all the vertices of the polygon
diameter
in a circle, a chord that passes through the center of the circle
inscribed
a polygon is inscribed in a circle if each of its vertices lie on the circle
intercepted
an angle intercepted an arc id and only each of the following conditions are met: 1. The endpoints of the arc lie on the angle; 2. All points of the arc except the endpoints are in the interior of the circle; 3. Each side of the angle contains an 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
in a circle, any segment, with endpoints that are the center of the circle and a point on the circle
secant
any line that intersects a circle in exactly two points
semicircle
an arc that measures 180
tangent
a line in the plane of a circle that intersects the circle in exactly one point
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