Discussion Forum: Thread 352720

 Author: bb3741532 View Messages Posted By bb3741532
 Posted: Jan 15, 2024 18:45
 Subject: Trying to find this triangle shaped plate
 Viewed: 171 times
 Topic: Catalog Identification
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bb3741532 (0)

Location:  USA
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Any help would be appreciated.
 
 Author: CLBoyce View Messages Posted By CLBoyce
 Posted: Jan 15, 2024 18:48
 Subject: Re: Trying to find this triangle shaped plate
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 Topic: Catalog Identification
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CLBoyce (64)

Location:  USA, Idaho
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Part No: 51739  Name: Wedge, Plate 2 x 4
* 
51739 Wedge, Plate 2 x 4
Parts: Wedge, Plate {Dark Turquoise}
 Author: bb3741532 View Messages Posted By bb3741532
 Posted: Jan 15, 2024 18:52
 Subject: Re: Trying to find this triangle shaped plate
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 Topic: Catalog Identification
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bb3741532 (0)

Location:  USA
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Jan 15, 2024 Member Does Not Allow Contact Buyer
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In Catalog Identification, CLBoyce writes:
  
 
Part No: 51739  Name: Wedge, Plate 2 x 4
* 
51739 Wedge, Plate 2 x 4
Parts: Wedge, Plate {Dark Turquoise}

Thank you!
 Author: HoosierNinja View Messages Posted By HoosierNinja
 Posted: Jan 15, 2024 22:05
 Subject: Re: Trying to find this triangle shaped plate
 Viewed: 64 times
 Topic: General
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HoosierNinja (1124)

Location:  USA, Indiana
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That's a trapezoid.
 Author: ghyde View Messages Posted By ghyde
 Posted: Jan 15, 2024 22:29
 Subject: Re: Trying to find this triangle shaped plate
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 Topic: General
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ghyde (204)

Location:  Australia, Queensland
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May 10, 2003 Contact Member Seller
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Store: Far North Bricks
In General, crazylegoman writes:
  That's a trapezoid.

Is it, though, if both triangles on each side are the same angle?

It's also a 3-dimensional plastic part, trapezoids when I was learning geometric
drawing and perspective were always 2-dimensional shapes, and would need to have
their cubic range calculated by dividing them up into their component geometric
shapes.

Thank goodness we have computers nowadays, if we still had to manually calculate
the 3-dimensional cubic area that a LEGO part occupied, I doubt we'd have
had anything more complicated than bricks or plates on this site.



Cheers ...

ghyde
 Author: DanialR View Messages Posted By DanialR
 Posted: Jan 16, 2024 01:06
 Subject: Re: Trying to find this triangle shaped plate
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DanialR (133)

Location:  USA, Washington
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Store Closed Store: Robbins' Roost
  It's also a 3-dimensional plastic part, trapezoids when I was learning geometric
drawing and perspective were always 2-dimensional shapes, and would need to have
their cubic range calculated by dividing them up into their component geometric
shapes.

I must have grown up in the dark ages(before computers).

We calculated the cubic volume if a trapezoid with this formula:

-- Volume of a trapezoid = 1/2(B1+B2) x H x L