On the internet, find an example of a famous bridge that contains one or more types of arch design. http://www.craigr.com/images/London%20Tower%20Bridge.jpg [Broken] http://www.burnszilla.com/photos/sfphotos/images/golden_gate_bridge_tower.jpg here are two bridges I found. Im not sure as to which one I should use yet. The question says describe some of the specific features and characteristics of each arch (ex: span, height, etc) First of all how do I describe these things? Second what is included in etc? There are no numbers how will I describe height and span? By the way this is from my Locus and Conics Unit, I dont know why this is about a bridge, plz give me some ideas if you have any!