Drexel dragonThe Math Forum

The Math Forum Internet Mathematics Library

Adventitious Geometry

Library Home || Full Table of Contents || Library Help

Visit this site: http://www.dcs.st-andrews.ac.uk/~ad/mathrecs/advent/advent.html

Author:Tony Davie; School of Mathematical and Computational Sciences, Univ. of St Andrews, Scotland
Description: A brief illustrated page about a seemingly simple problem involving an isosceles triangle with some angles given. Under what circumstances are all the angles in the diagram rational multiples of pi? Further discussion of adventitious quadrangles and concurrent diagonals ensues.

Levels: High School (9-12), College
Languages: English
Resource Types: Lesson Plans and Activities
Math Topics: Euclidean Plane Geometry, Trigonometry

[Privacy Policy] [Terms of Use]

Home || The Math Library || Quick Reference || Search || Help

© 1994- The Math Forum at NCTM. All rights reserved.