Question

why are manhole covers round?

Answer 1

Ans.- Manholes' covers are round because a round cover does not let itself to fall through in its circular opening.
-----------------------------------------------------------------------------------------
If helpful, brainliest answer plz

Answer 2

Answer:

You'd have to rotate the cover exactly the right way. Therefore, many manhole covers are round so they don't need to be rotated. There are no corners to deal with. Also, a round manhole cover won't fall into a hole because it was rotated the wrong way, so it's safer.