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Orthocenter of a Triangle

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Examples, solutions, videos, worksheets, games, and activities to help Geometry students learn how to construct the orthocenter of a triangle.

The following diagrams show the orthocenters of different triangles: acute, right, and obtuse. Scroll down the page for more examples and solutions on the orthocenters of triangles.

Orthocenter Triangle

How to construct the Orthocenter of a Triangle?
The orthocenter is the point of concurrency of the altitudes in a triangle. A point of concurrency is the intersection of 3 or more lines, rays, segments or planes. The orthocenter is just one point of concurrency in a triangle. The others are the incenter, the circumcenter and the centroid.
This video demonstrates how to construct the orthocenter of a large scalene triangle using a compass and straightedge.

Constructing the orthocenter of a triangle
Using a straight edge and compass to create the external orthocenter of an obtuse triangle
Construct the Orthocenter of a Triangle

Try the free Mathway calculator and problem solver below to practice various math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.
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