Tag: why are some manhole covers not round

  • The Math of Manholes, Part Two

    (Continued from part one) Before we start, I want to clear up a small point: Reuleaux is pronounced RUH low. Moving on. The answer to the question posed at the end of the post (“Why can we turn some shapes into Reuleaux polygons but can’t for others?”) is: if the polygon has an even number…