Answer
With positioned sketches, the origin and directions of the absolute axis are similar to external references (Use-Edges) obtained using additional projections or intersections when creating non-positioned sketches. If the 2D geometry is under constrained and you move or resize the part (no matter how significantly), the profile you sketched will remain absolutely unchanged. It is also easy to copy and reuse in another place (since you don’t need to use external references).
For more details about this operation, please click on the document below and read it.
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