# Find length and angles in an image

**URL:** <https://forum.opencv.org/t/find-length-and-angles-in-an-image/3870>\
**Category:** Python\
**Created:** [June 16, 2021, 7:27am UTC](https://forum.opencv.org/t/find-length-and-angles-in-an-image/3870 "2021-06-16T07:27:15Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![pk\_1111](https://avatars.discourse-cdn.com/v4/letter/p/3be4f8/32.png) [@pk\_1111](https://forum.opencv.org/u/pk_1111)\
**Post date:** [June 16, 2021, 7:27am UTC](https://forum.opencv.org/t/find-length-and-angles-in-an-image/3870/1 "2021-06-16T07:27:15Z")

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how to get the size of each side in an image if the image has both straight line and curved lines,  
i want to find

1. number of sides and their length (if any side has curved/arc shape then their radius )
2. number of corner and their angles

if the image has all sides as straight line then i have calculated all above but in case image has mixture of straight line and curved line then unable to find.