How to construct (draw) one of the three altitudes of a triangle

This page shows how to construct one of the three altitudes of a triangle, using only a compass and straightedge or ruler. A Euclidean construction.

How to construct (draw) one of the three altitudes of a triangle - Math Open Reference

How to construct (draw) one of the three altitudes of a triangle - Math Open Reference

How to construct (draw) one of the three altitudes of a triangle - Math Open Reference

How to Construct a Bisector of a Given Angle: 8 Steps

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Constructing an angle - Loci and constructions – WJEC - GCSE Maths

How to Construct the Orthocenter of a Triangle, Geometry

How to construct an isosceles triangle with given base length and