points of concurrency
Post on 31-Dec-2015
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Points of ConcurrencyThe point where three or more lines intersect.
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Median of a TriangleA segment from one vertex of the triangle to the midpoint of the opposite side.
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The intersection of the medians is called the CENTROID.How many medians does a triangle have?
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Angle Bisector
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The intersection of the angle bisectors is called the INCENTER.How many angle bisectors does a triangle have?
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What is special about the INCENTER?Equidistant to sides of the triangle
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The intersection of the perpendicular bisector is called the CIRCUMCENTER.How many perpendicular bisectors does a triangle have?
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What is special about the CIRCUMCENTER?Equidistant to the vertices of the triangle.
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Altitude
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The intersection of the altitudes is called the ORTHOCENTER.How many altitudes does a triangle have?
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Tell whether each red segment is an altitude of the triangle.The altitude is the true height of the triangle.
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