The shape of manhole covers

Why is a manhole cover round?

Answer #1

Ty and toadaly have it! And it doesn’t matter what position it’s reinstalled (besides upside down) because it is so heavy to turn.

Answer #2

Because the hole is round?

Answer #3

Because not all men are shaped the same of course!

Answer #4

I’ve always heard it was so the cover couldn’t fall in.

Answer #5

so the cover doesn’t fall in?

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