More Lessons for Grade 9
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.
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
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