## Chapter 10 Vocab

##### Created by:

lindseyholly0918  on November 29, 2011

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# Chapter 10 Vocab

 CircleThe set of all points in a plane that are the same distance from a given point called the center
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#### Definitions

Circle The set of all points in a plane that are the same distance from a given point called the center
Secant a line that intersects a circle in two points
Tangent a line in the plane of a circle that intersects the circle in exactly one point
Point of Tangency the point where a circle and a tangent intersect
Central angle an angle whose vertex is the center of the circle
Arc Part of a circle connecting two points on the circle.
Measure of an Arc is the measure of the center angle formed by the radii from the two points
Inscribed angle an angle whose vertex is on a circle and whose sides contain chords of the circle
Intercepted arc the arc that lies in the interior of an inscribed angle and has endpoints on the angle.
Inscribed Polygon A polygon whose vertices all lie on a circle.
Circumscribed circle A circle with a inscribed polygon
Standard Equation of a circle A circle with a radius r and a center (h,k) hA this standard equation:
(x-h)squared + (y-k)squared = rsquared
Locus the set of all points or lines that satisfy or are determined by specific conditions

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