Here we have a ruler. This ruler has to do with what were doing because it has to do with measurements, and measurements are a part of the system of units. A ruler is one foot long. Each foot has twelve inches. Three feet equal one yard. So, a yard would have thirty six inches total. I happen to be sixty six and a half inches, which is five feet and six and a half inches. I think that its weird that we use the foot while almost the entire rest of the world uses the meter. But hey, thats just me. The foot is still a pretty good standard of measurement though.
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