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17 Cards in this Set
- Front
- Back
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Inscribed Angle |
An angle with its vertex on the circle and sides intersecting the circle at two distinct points. |
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Radius |
A line segment drawn from the center of a circle to a point on the circle. |
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Minor arc |
An arc with measure less than 180 degrees. |
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Intercepted arc |
The arc of a circle bounded by the points where two sides of an inscribed angle meet the circle. |
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Circumscribed Circle (or circumscribed period) |
A circle circumscribes a polygon when it passes through all of the vertices of the polygon.
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Central angle |
An angle with its vertex at the center of a circle. |
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Circle |
The set of all points on a flat surface that are the same distance from a fixed point. |
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Diameter |
A line segment drawn through the center of a circle with both endpoints on the circle. |
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Perpendicular |
Two rays, line segments, or lines that meet (intersect) to form a right angle (90 degrees). |
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Perpendicular bisector |
The perpendicular bisector of a line segment is a line segment perpendicular to the original segment, and passing through its midpoint. |
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Circumference |
The perimeter (distance around) a circle. |
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Arc length |
The length of an arc is the distance from one of the arc's endpoints to the arc's other endpoint, measured around the circle. |
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Chord |
A line segment with its endpoints on a circle. (not diameter) |
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Major arc |
An arc with its measure greater than 180. |
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Tangent line (or tangent) |
A line on the same flat surface as a circle that intersects the circle in exactly one point. |
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Sector |
A region formed by two radii of a central angle and the arc between their endpoints on the circle. |
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Secant |
A line that intersects a circle at two distinct points. |
