# Help w sketch constraints

**URL:** <https://discourse.shapr3d.com/t/help-w-sketch-constraints/7607>\
**Category:** Modeling Questions\
**Created:** [May 7, 2020, 5:36pm UTC](https://discourse.shapr3d.com/t/help-w-sketch-constraints/7607 "2020-05-07T17:36:14Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Jtietz](https://avatars.discourse-cdn.com/v4/letter/j/d26b3c/32.png) [@Jtietz](https://discourse.shapr3d.com/u/Jtietz)\
**Post date:** [May 7, 2020, 5:36pm UTC](https://discourse.shapr3d.com/t/help-w-sketch-constraints/7607/1 "2020-05-07T17:36:14Z")

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Trying to understand how I can rotate one edge of a triangle (in a 2D sketch) and maintain the opposite angle. When I try, it maintains the length of the edge and instead alters the opposite angle to accommodate. I’ve tried to use various combinations of constraints, but can only get the (undesired) angle accommodation or the figure locks up entirely. Thoughts? Workarounds?

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**Author:** ![Jtietz](https://avatars.discourse-cdn.com/v4/letter/j/d26b3c/32.png) [@Jtietz](https://discourse.shapr3d.com/u/Jtietz)\
**Post date:** [May 7, 2020, 9:06pm UTC](https://discourse.shapr3d.com/t/help-w-sketch-constraints/7607/2 "2020-05-07T21:06:23Z")

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FYI this is the design. Note the upper left quadrant where I rotated the outside edges and would like the pie wedges to continue filling the space.

 ![IMG_0090](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/a/a3fc81a2ae96a562e1084297fb3e2acacd353901.png)

(I think I uploaded the image?)

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**Author:** ![Victor\_Shapr3D](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/victor_shapr3d/32/3502_2.png) [@Victor\_Shapr3D](https://discourse.shapr3d.com/u/Victor_Shapr3D)\
**Post date:** [May 8, 2020, 9:10am UTC](https://discourse.shapr3d.com/t/help-w-sketch-constraints/7607/3 "2020-05-08T09:10:48Z")

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Hi, here’s a short video workaround on how you can position the triangle by adjusting its angles:

> **[File from iOS (2).MP4](https://share.getcloudapp.com/mXuB2vQ4)**
>
> Shared with CloudApp

Afterward you can duplicate the traingle to have several copies.  
I hope that this is helpful 🙂

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**Author:** ![Jtietz](https://avatars.discourse-cdn.com/v4/letter/j/d26b3c/32.png) [@Jtietz](https://discourse.shapr3d.com/u/Jtietz)\
**Post date:** [May 8, 2020, 8:49pm UTC](https://discourse.shapr3d.com/t/help-w-sketch-constraints/7607/4 "2020-05-08T20:49:37Z")

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Thanks! I can work with that