Desargues' Theorem app for iPhone and iPad

4.2 ( 9722 ratings )

Utilities Education
Developer: Trevor Q. Foley

Free

Current version: 1.0, last update: 7 years ago
First release : 29 Jun 2011
App size: 1.52 Mb

This is a demonstration of Gérard Desargues theorem.

Two triangles are prospective from a point if and only if they are prospective from a line.

You can move the vertices of the two triangles and a point labeled X will appear if the two triangles satisfy the theorem.