Working With Shelton Bridge

I took a picture of the Shelton Bridge. The base of the bridge has similar triangles and can be used in the classroom to teach very important geometry concepts such as symmetry, right triangles etc.

1. I cut the picture of the bridge in half and saved one layer as a right side.
2. I saved the other half of the bridge as a left side.
3. I rotated the right 180 degrees and put it on top of the left side.
4. The line between the two layers is the line of the symmetry.