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But, a square or rectangular cover can still fall into the hole, if inserted diagonally.
 
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But a square or rectangular cover can still fall into the hole if inserted diagonally
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  • 00:01

    It's AumSum Time

  • 00:13

    Why are manhole covers round?

  • 00:17

    Because they copied my shape.

  • 00:19

    No

  • 00:23

    Manhole covers are quite heavy.

  • 00:27

    So, round-shaped covers can be rolled easily from place to place.

  • 00:32

    Also, round covers can simply slide and fit into the hole.

  • 00:37

    But, to fit square or triangular manhole covers properly.

  • 00:40

    They must be precisely aligned with the edges and angles of the manhole.

  • 00:48

    Now, the manhole has a small lip around the rim of the hole.

  • 00:52

    This lip makes the opening smaller than its cover and prevents the cover from falling into the hole.

  • 00:59

    But, a square or rectangular cover can still fall into the hole, if inserted diagonally.

  • 01:07

    Why?

  • 01:09

    Because their sides are always smaller than their diagonals.

  • 01:15

    A round cover won't fall into the hole.

  • 01:17

    Because no matter how you place it, the cover is always wider than the opening.

All

The example sentences of RECTANGULAR in videos (15 in total of 106)

How to Build the Perfect Castle English (GB)
a determiner typical adjective early adjective stone noun, singular or mass keep noun, singular or mass is verb, 3rd person singular present rectangular adjective , between preposition or subordinating conjunction two cardinal number and coordinating conjunction four cardinal number stories noun, plural high adjective , with preposition or subordinating conjunction walls noun, plural
Why are Manhole Covers Round? + more videos | #aumsum #kids #science #education #children English (IN)
but coordinating conjunction , a determiner square noun, singular or mass or coordinating conjunction rectangular adjective cover noun, singular or mass can modal still adverb fall verb, base form into preposition or subordinating conjunction the determiner hole noun, singular or mass , if preposition or subordinating conjunction inserted verb, past participle diagonally adverb .
Learn Skills For QUALITY ISOMETRIC DESIGN - Illustrator Isometric House Tutorial English (US)
to to make verb, base form that wh-determiner locate verb, base form the determiner rectangular adjective grid noun, singular or mass tool noun, singular or mass below preposition or subordinating conjunction the determiner line noun, singular or mass tool noun, singular or mass in preposition or subordinating conjunction the determiner tools noun, plural
What Happened to the Beige Box? | Nostalgia Nerd English (GB)
housing verb, gerund or present participle them personal pronoun all determiner in preposition or subordinating conjunction a determiner rectangular adjective box noun, singular or mass seemed verb, past tense practical adjective , cost noun, singular or mass effective adjective , and coordinating conjunction , well adverb , it personal pronoun looked verb, past tense
Structural Shapes Ranked and Reviewed - Which one Wins? English (CA)
the determiner same adjective comments noun, plural as preposition or subordinating conjunction rectangular adjective apply verb, base form to to square verb, base form , but coordinating conjunction square noun, singular or mass has verb, 3rd person singular present a determiner bit noun, singular or mass of preposition or subordinating conjunction additional adjective
But why is a sphere's surface area four times its shadow? English (US)
projecting verb, gerund or present participle each determiner rectangular adjective piece noun, singular or mass , you personal pronoun rotate verb, non-3rd person singular present each determiner one cardinal number and coordinating conjunction rearrange verb, base form them personal pronoun to to make verb, base form the determiner cylinder noun, singular or mass .
How to Make Filet-O-Fish Sandwich (Copy Cat Recipe) | Hilah Cooking English (US)
so adverb there adverb , they personal pronoun 're verb, non-3rd person singular present not adverb exactly adverb square noun, singular or mass , but coordinating conjunction they personal pronoun 're verb, non-3rd person singular present rectangular adjective and coordinating conjunction that wh-determiner 's verb, 3rd person singular present a determiner type noun, singular or mass of preposition or subordinating conjunction squares noun, plural
What are Dubai's Future Skyscrapers | Luxury Lifestyle | The Drop English (CA)
its possessive pronoun main adjective design noun, singular or mass feature noun, singular or mass is verb, 3rd person singular present a determiner single adjective rectangular adjective tower noun, singular or mass rising verb, gerund or present participle from preposition or subordinating conjunction a determiner four cardinal number - story noun, singular or mass podium noun, singular or mass
LIFE-CHANGING GIFT WRAPPING HACKS English (GB)
i personal pronoun 'll modal show verb, base form you personal pronoun using verb, gerund or present participle this determiner book noun, singular or mass because preposition or subordinating conjunction it personal pronoun does verb, 3rd person singular present work noun, singular or mass really adverb well adverb on preposition or subordinating conjunction rectangular adjective presents noun, plural ,
SAMSUNG GALAXY NOTE 20 - This Is Insane! English (GB)
got verb, past tense a determiner rectangular adjective camera noun, singular or mass module noun, singular or mass similar adjective to to the determiner s proper noun, singular range noun, singular or mass and coordinating conjunction it personal pronoun 's verb, 3rd person singular present 38.1 cardinal number mil noun, singular or mass long adjective
Flight Training - Cross-wind Landings Video from AOPA. English (US)
turns verb, 3rd person singular present around preposition or subordinating conjunction the determiner point noun, singular or mass , rectangular adjective course noun, singular or mass , all determiner that determiner kind noun, singular or mass of preposition or subordinating conjunction stuff noun, singular or mass is verb, 3rd person singular present all determiner about preposition or subordinating conjunction ground noun, singular or mass
SAMSUNG GALAXY NOTE 20 - Hands On! English (GB)
top noun, singular or mass of preposition or subordinating conjunction the determiner galaxy noun, singular or mass note noun, singular or mass 20 cardinal number on preposition or subordinating conjunction the determiner rear adjective we personal pronoun 've verb, non-3rd person singular present got verb, past participle a determiner rectangular adjective camera noun, singular or mass module noun, singular or mass
Instagram DESSERT chocolate mousse recipe cake HOW TO COOK THAT Ann Reardon English (AU)
take verb, base form your possessive pronoun deep adjective rectangular adjective container noun, singular or mass and coordinating conjunction draw verb, base form an determiner instagram proper noun, singular logo noun, singular or mass in preposition or subordinating conjunction the determiner right adjective size noun, singular or mass , sticky noun, singular or mass
Viking Blood Bread English (US)
so adverb now adverb you're proper noun, singular here adverb in preposition or subordinating conjunction the determiner great adjective hall noun, singular or mass , a determiner massive adjective rectangular adjective building noun, singular or mass with preposition or subordinating conjunction a determiner huge adjective
Structural Design: The only thing you need to know English (AU)
would modal form verb, base form those determiner rectangular adjective load noun, singular or mass distributions noun, plural they personal pronoun 're verb, non-3rd person singular present normally adverb quite adverb random adjective as preposition or subordinating conjunction they personal pronoun need verb, non-3rd person singular present to to be verb, base form

Use "rectangular" in a sentence | "rectangular" example sentences

How to use "rectangular" in a sentence?

  • I'm never going to be a modern gal. I love colonial. I love early American. I love a big rectangular piece of brown furniture on a hardwood floor.
    -Emily Procter-
  • Although the circle dance is known throughout the entire world, the front dance is limited to the cultures of which the rectangular hut is a part.
    -Curt Sachs-

Definition and meaning of RECTANGULAR

What does "rectangular mean?"
rectangular

/rekˈtaNGɡyələr/

adjective
denoting or shaped like rectangle.