# How can I create a trapezoid?

**URL:** <https://discourse.shapr3d.com/t/how-can-i-create-a-trapezoid/12933>\
**Category:** Modeling Questions\
**Created:** [May 21, 2021, 3:06pm UTC](https://discourse.shapr3d.com/t/how-can-i-create-a-trapezoid/12933 "2021-05-21T15:06:05Z")\
**Posts on this page:** 11\
**Page:** 1

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**Author:** ![Zumen](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/zumen/32/10800_2.png) [@Zumen](https://discourse.shapr3d.com/u/Zumen)\
**Post date:** [May 21, 2021, 3:06pm UTC](https://discourse.shapr3d.com/t/how-can-i-create-a-trapezoid/12933/1 "2021-05-21T15:06:05Z")

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Hello,

can anyone of you more experienced shaprs out there tell me how I can make a correction with this trapezoid? As you can see here, I managed to draw one trapezoid, but I when I drew the second one I wanted to correct the angle in the bottom left corner (to 99,207 degrees). When I did that, the bottom line jumped upwards and is now inclining. What do I need to do to move it back so it’s horizontal so that it looks like the upper trapezoid?

 ![Bildschirmfoto 2021-05-21 um 17.01.40](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/7/7a438a29ea0c639390e64e4dea8b0264982ca324.png)  
Thanks in advance for your help.

Cheers, Zumen

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**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\
**Post date:** [May 21, 2021, 3:22pm UTC](https://discourse.shapr3d.com/t/how-can-i-create-a-trapezoid/12933/2 "2021-05-21T15:22:24Z")

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Use parallel constraint on the 2 longest lines.

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**Author:** ![Zumen](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/zumen/32/10800_2.png) [@Zumen](https://discourse.shapr3d.com/u/Zumen)\
**Post date:** [May 21, 2021, 3:39pm UTC](https://discourse.shapr3d.com/t/how-can-i-create-a-trapezoid/12933/3 "2021-05-21T15:39:45Z")

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Thank you so much, Oregonerd. It worked ! 😃

 ![Bildschirmfoto 2021-05-21 um 17.34.58](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/0/0d2dd49867401b8b18a3bc4791f9a973de620a98.png)  
However, the first trapezoid in the first trapezoid (above) should be identical as in the second one but  
in the second one there’s a little gap in the to right corner (see next post). How did this get here and what should I do to remove it?

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**Author:** ![Zumen](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/zumen/32/10800_2.png) [@Zumen](https://discourse.shapr3d.com/u/Zumen)\
**Post date:** [May 21, 2021, 3:40pm UTC](https://discourse.shapr3d.com/t/how-can-i-create-a-trapezoid/12933/4 "2021-05-21T15:40:03Z")

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![Bildschirmfoto 2021-05-21 um 17.37.56](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/2/2734504330e2fb28d491f2095490317e184a8273.jpeg)

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**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\
**Post date:** [May 22, 2021, 1:27am UTC](https://discourse.shapr3d.com/t/how-can-i-create-a-trapezoid/12933/5 "2021-05-22T01:27:00Z")

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Delete the top line and redraw and then hit the parallel constraint. Check your angles and distances and remember you can lock all of those attributes in place.

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**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\
**Post date:** [May 22, 2021, 1:39am UTC](https://discourse.shapr3d.com/t/how-can-i-create-a-trapezoid/12933/6 "2021-05-22T01:39:17Z")

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Also, you can use the move tool to duplicate any lines in a drawing.

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**Author:** ![Zumen](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/zumen/32/10800_2.png) [@Zumen](https://discourse.shapr3d.com/u/Zumen)\
**Post date:** [May 22, 2021, 8:16am UTC](https://discourse.shapr3d.com/t/how-can-i-create-a-trapezoid/12933/7 "2021-05-22T08:16:27Z")

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Thanks again, Oregonerd! It worked 😃 Can I duplicate the entire trapezoid?

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**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\
**Post date:** [May 22, 2021, 2:57pm UTC](https://discourse.shapr3d.com/t/how-can-i-create-a-trapezoid/12933/8 "2021-05-22T14:57:23Z")

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Yes, any line or group of sketch elements selected can be duplicated in sketches.

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**Author:** ![Zumen](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/zumen/32/10800_2.png) [@Zumen](https://discourse.shapr3d.com/u/Zumen)\
**Post date:** [May 22, 2021, 4:26pm UTC](https://discourse.shapr3d.com/t/how-can-i-create-a-trapezoid/12933/9 "2021-05-22T16:26:19Z")

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Sounds great. So, if I wanted to duplicate this trapezoid I would at first have to select the four lines

 ![Bildschirmfoto 2021-05-22 um 18.21.36](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/0/0dedac6e19e08445834273c66917b96ee77cb606.png)  
of the trapezoid. The problem is, that when I click on the bottom line Shapr3D selects the entire line. Can I deselect that long bottom line?  
Secondly, how can I then duplicate the trapezoid. Is that similar to Office (Crtl + C and then Crtl + V)?

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**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\
**Post date:** [May 22, 2021, 4:29pm UTC](https://discourse.shapr3d.com/t/how-can-i-create-a-trapezoid/12933/10 "2021-05-22T16:29:29Z")

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You can “trim” the connecting line between the 2.

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<div class="post-metadata">

**Author:** ![Zumen](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/zumen/32/10800_2.png) [@Zumen](https://discourse.shapr3d.com/u/Zumen)\
**Post date:** [May 22, 2021, 6:04pm UTC](https://discourse.shapr3d.com/t/how-can-i-create-a-trapezoid/12933/11 "2021-05-22T18:04:54Z")

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OK, I got it. Thanks 😃
