use one of the support towers of the Golden Gate Bridge..
at least lots of nice pics to look at and lots of triangles
I am doing a project for my Geometry class, and I am making a powerpoint with proofs for Euclid's first book propostions, to be more specific, the propositions related to triangles. I would like some ideas of a more "hands on" visual for this? I was thinking using Kinex to demonstrate them, but that is pretty boring and I lack creativity. Any help would be wonderful!