Is a bunch of triangles a zigzag?

I'm going to call the edges of these buildings "zigzags." 

This is perhaps more of a sawtooth edge, but one could easily draw a zigzag along that edge. 

And that's all for today. I did make another trek to a library, so I'll write that up shortly. I've even done some cooking, and some knitting. Oh, my. I'll get right on all that!