 
Benedict's Mathematical Gleanings
These pages contain some of the bits of maths that most excite me. Many of them
are geometrical, and have been put together using Geometry Sketchpad.
Pappus's Theorem 
Take any 2 lines and choose 3 points on each. Taking the points four at
a time, two from each line, find the point where the diagonals intersect.
The three such points are collinear. 
Desargues's Theorem 
Two triangles have corresponding vertices as projections of each other
from one point. Find the 3 points where corresponding sides intersect. The
3 points are collinear. 
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Updated 17/12/2003 00:31
