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But manhole covers are always bigger than the hole. Otherwise, they'd fall in at installation and the problem would be immediately obvious. The point here is m
by mjlee 9y ago
But manhole covers are always bigger than the hole. Otherwise, they'd fall in at installation and the problem would be immediately obvious.
The point here is more that a circle has the same diameter regardless of orientation. There's no way to rotate it to make it fit through a hole it couldn't before, like you can do with a rectangle.
- jpindar 9y agoThis is also true of a triangle, and indeed there are triangular manholes.