# Angles between faces and edges alingn faces

**URL:** <https://discourse.shapr3d.com/t/angles-between-faces-and-edges-alingn-faces/20241>\
**Category:** Modeling Questions\
**Created:** [July 8, 2022, 12:13pm UTC](https://discourse.shapr3d.com/t/angles-between-faces-and-edges-alingn-faces/20241 "2022-07-08T12:13:41Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![klopinRC](https://avatars.discourse-cdn.com/v4/letter/k/a9a28c/32.png) [@klopinRC](https://discourse.shapr3d.com/u/klopinRC)\
**Post date:** [July 8, 2022, 12:13pm UTC](https://discourse.shapr3d.com/t/angles-between-faces-and-edges-alingn-faces/20241/1 "2022-07-08T12:13:41Z")

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The angles between the edges of the two faces are different than between the faces themselves.

 ![](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/f/f90fbc135efbc463f40a6b986cfde052d7f7b31f.png)

and the second problem is that after aligning the 2 pieces as in the photo, with the faces cut off, the angles shown in the photo change.

Sorry for my English

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**Author:** ![HoLyCoW](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/holycow/32/17436_2.png) [@HoLyCoW](https://discourse.shapr3d.com/u/HoLyCoW)\
**Post date:** [July 8, 2022, 6:30pm UTC](https://discourse.shapr3d.com/t/angles-between-faces-and-edges-alingn-faces/20241/2 "2022-07-08T18:30:23Z")

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That’s because when selecting the faces, it thinks you want to measure the outside angle. When selecting the edges, it’s measuring the inside angle.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/7/7963ba418482808b755de08c915928fb01521618.png)