# What are they? Where are they? How are they found?

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Triangle Centers. What are they? Where are they? How are they found?. Triangle Centers Points of Concurrency. What is this all about? A Point of Concurrency is a point of intersection of 2 or more lines. The lines that form a point concurrency are called concurrent lines . - PowerPoint PPT Presentation

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• What are they?Where are they?How are they found?

• Triangle Centers Points of ConcurrencyWhat is this all about?A Point of Concurrency is a point of intersection of 2 or more lines. The lines that form a point concurrency are called concurrent lines.

• The Points areIncenterCircumcenterOrthocenterCentroid

Though there are many other points of concurrency, which we will see later, we will concentrate on these four today.

• IncenterPoint of concurrency formed by the intersection of the three bisectors of a triangle

• CIRCUMCENTERPoint of concurrency formed by the intersection of three perpendicular bisectors of the sides of a triangle

• ORTHOCENTERPoint of concurrency formed by the intersection of the three altitudes of a triangle

• CentroidPoint of concurrency formed by the intersection of the three medians of a triangle

• Oh yeah, in case you are wondering, here are some other more recent pts. of concurrency.Fermat PointNine-Point CenterSymmedian PointNagel PointNapolean PointSchiffler PointExeter PointApollonious PointParry PointAnd the list could go on and on and on..

• The Points areIncenterCircumcenter Orthocenter Centroid