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Geo_5.1
Vocabulary for Geometry_5.1
| Term | Definition |
|---|---|
| adjacent arcs | Arcs in a circle that have exactly one point in common. |
| arc | A part of a circle that is defined by two endpoints. The measure of an arc is given in degrees. |
| arc length | The distance between the endpoints along an arc measured in linear units. |
| center (of circle) | The central point where radii form a locus of points called a circle. |
| 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 a circle. |
| circumference | The distance around a circle. |
| circumscribed | A circle circumscribed about a polygon if the circle contains all the vertices of the polygon. |
| concentric circles | Coplanar circles with the same center. |
| congruent arcs | Arcs in the same circle or in congruent circles that have the same measure. |
| 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 a circle. |
| major arc | An arc with a measure greater than 180. |
| minor arc | An arc with a measure less than 180. |
| pi (π) | An irrational number represented by the ratio of the circumference of a circle to the diameter of the circle. |
| radius | In a circle, any segment with endpoints that are the center of the circle and a point on the circle. |
| semicircle | An arc that measures 180. |
Created by:
mtoepper
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