The orthocenter H and circumcenter R of \triangle ABC are identified in the diagram below. Find and label the center O and at least six of the nine significant points of the nine-point circle of \triangle ABC, and sketch the circle.
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The center of the nine-point circle (also known as the Euler circle) is the midpoint of the line segment between the circumcenter and the orthocenter. Let's label this point as O. Show more…
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