Demonstrate Area Mapping and Measurement

and the gyroscope in your phone um it will do all the math for you here in a second so there's an app on your phone yep oh my God so it's drawing a map so for measuring a fence I mean you just went out in this square like kind of and it just told you your linear feet right there and it just mapped it out sure did put it back up so look at that it's got right there he just walked around it