The Orthic Triangle for an Obtuse Triangle
The Orthic Triangle for an Acute Triangle is the Inscribed Triangle with Minimum Perimeter
The triangle whose vertices are the feet of the altitudes of a given triangle.
This interactive worksheet displays how an orthic triangle is created using an original triangle
The orthic triangle of a triangle ABC has as vertices the feet of the altitudes of ABC, that is, the projections of the vertices A, B, C on the sides.