ANSWERS: 1
  • According Live Science, manhole covers are round to prevent the cover from falling into the hole and possibly harming workers. It's geometrically impossible to fit a rigid circle through a smaller hole. Square shapes, on the other hand, can be angled to fit through a square hole.

    Source:

    Live Science

Copyright 2023, Wired Ivy, LLC

Answerbag | Terms of Service | Privacy Policy