1 ) It is easy to roll and move from place as it is too heavy to lift.
2 ) The main reason is that it wont enter the man hole. If it is aquare it will enter the man hole easily.
2006-06-11 01:29:35
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answer #1
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answered by insatiable_kajal 2
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A round lid will not be able to fall in the hole, however you try.
But a square/rectangle will be able to fall in if it is put sideways.
2006-06-11 01:30:16
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answer #2
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answered by is_that_your_final_answer 1
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Since the hole is round, it would logically follow that the lid would be as well, don't you think?
2006-06-11 01:39:01
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answer #3
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answered by mambaice 2
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its bcoz the manhole is round.. naturally the lid covering it is same.. u would'nt wanna cover a round hole with a square lid? would u?
2006-06-11 02:15:54
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answer #4
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answered by Anonymous
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It's the only shape that prevents the top from falling in. It only takes a few seconds to realize that, so I haven't spent time thinking about it since I was about 6 years old.
2006-06-11 01:29:48
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answer #5
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answered by thylawyer 7
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Maybe if they were square or rectangled,the edges (4 corners) would probably produce more flat tires.
2006-06-11 01:29:22
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answer #6
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answered by Squeakers 6
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many advantages.. u can easily roll the cover like a wheel as it is made up of heavy iron and difficult to carry...
u can easily fall in tht hole if its round..
2006-06-11 01:29:55
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answer #7
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answered by raghav3001 1
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1. The manholes are probably round, so that the person going through them can actually ge there belly through. LOL, JK.
2. BLABLABLABLABLA
2006-06-11 01:49:49
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answer #8
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answered by lyric 3
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No. That's the silliest question I have ever encountered!
2006-06-11 01:28:14
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answer #9
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answered by Anonymous
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its not hole if its not circular
2006-06-11 03:34:34
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answer #10
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answered by mike eugene bato from philippine 1
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