Construct a triangle labeled ABC

Construct the altitude from vertex A to segment BC. This is done by constructing a perpendicular line from vertex A to segment BC

Now we construct the altitudes from vertex C to segment AB and vertex B to segment AC



The point where all three altitudes intersect is known as the orthocenter...labeled as point H


Note: Point H does not have to fall on the line segments that are altitudes but can be found on the lines extended along the altitudes

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