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Stack #1571424

circle The set of all points in an plane that are equidistant from a given point, called the center of the circle
center Given point in the middle of circle
radius The distance from the center of a circle to a point on the circle
diameter A chord that passes thru the center of a circle. The distance across the circle.
chord A segment whose end points are points on the circle
secant A segment that intersects a circle in two points, with one point as an endpoint of the segment.
tangent A line in the plane of a circle that intersects the circle in exactly one point
concentric Coplanar circles that have a common center
central angle An angle whose vertex is center or the circle
inscribed angle An angle whose vertex is on a circle and whose sides contain chords of the circle
minor arc An arc that is less that 180
major arc An arc that is more than 180
semicircle When the endpoints of an arc are the endpoints of a diameter
intercepted arc The arc that lies in the interior of an inscribed angle and has endpoints on the angle
inscribed If all the vertices of a polygon lie on a circle
circumscribed A circle with an inscribed polygon
equidistant Equal distance
apothem The height of a triangle between the center and two consecutive vertices of the polygon
circumference The distance around a circle
arc length Portion of the circumference of a circle
area Equals Pie R squared
sector The region bounded by the two radii of the circle and their intercepted arc
Created by: karenroeder
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