5-3 points of concurrency objective: to identify properties of perpendicular bisectors and angle...
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5-35-3Points of ConcurrencyPoints of Concurrency
Objective:Objective:
To identify properties of To identify properties of perpendicular bisectors and angle perpendicular bisectors and angle
bisectorsbisectors
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Concurrent: When three or more lines, segments, rays or planes have a point in common.Point of Concurrency: The point of intersection.
Not Concurrent
Concurrent
Point of Concurrency
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The three perpendicular bisectors of a triangle are concurrent.Point of concurrency is called circumcenter.
The circumcenter of a triangle is equidistant from the verticesand is the center of the circle.
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The circumcenter of a triangle can be inside, on , or outside a triangle.
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Finding the Circumcenter of a triangle.
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The point of concurrency of the angle bisectors of atriangle is called the incenter of the triangle.
The bisectors of the anglesof a triangle are concurrentat a point equidistant fromthe sides of the triangle.
P is the center of the circlethat is inscribed in the triangle.
p. 305: 7, 8, 9, 15, 17, 37, 38