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Median
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A segment from a vertex to the midpoint of the opposite side. |
Centroid
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The point of concurrency of the three medians of a triangle |
Theorem - Centroid
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The centroid of a triangle divides a median into segments that are 1/3 and 2/3 the length of the median. |
Altitude
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The perpendicular segment from a vertex to the opposite side of a triangle. |
Orthocenter
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The point of concurrency of the three atltiudes of a triangle. |
Midsegment of a triangle
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A segments that connects the midpoints of two sides of the triangle. |
Midsegment Theorem
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The midsegment is parallel to a side of the triangle and is half as long as that side. |