Breaking exactly between 2 points on arcs in degrees. 45 degree, exemple. From 90 to 135. How to?

Draw a couple of temporary lines that pass through the circumference of the circle then break at intersections?  Or perhaps utilize polar tracking to break at the specified angles?
John Connor2016-01-16 12:57:34

I haven t permission to track anything but use relative coordonates, as the break distance shall not be on right side, but left side.

It doesn't matter where the break is going to occur in the circle.And what do you mean you "don't have permission"?  What, your boss said you weren't allowed to do it a certain way?

It îs a exercite. Boss îs TEACHER.Do YOU know how to Use specifiy first point and secund point with coordonates? Break Shall Be Between 90 and 135 degrees. The side certainly Matter. I have to Use @ too at coordonates?

If you know the coordinates you don't have to use the @ sign.Input the coordinates when prompted.  Separate the X/Y coordinates with a comma.Example:Command: BREAKSelect object:Specify second break point or [First point]: FSpecify first break point: 18.3135,13.2204Specify second break point: 20.9471,14.3113But be careful.  The result you get may not be what you were expecting to see.

See the same question here:  http://forums.autodesk.com/t5/autocad-2013-2014-2015-2016/break-command-at-specify-point/m-p/5994104#M109809BUT you can also do it with Polar [F10] and Object-Snap Tracking [F11].  Have CENter among your running Object-Snap modes, and the 45-degree multiples among your Polar angles.  Call for the BREAK command, pick the Arc, choose the First option, hover over the Arc with the cursor so that a little cross appears at its center, then hover over that cross so that it "lights up" and you can Polar-track from there in the 90-degree direction [you don't need to pick on the Arc, just establish the direction], then for the second Break point, again hover over the Arc to get the center mark, hover over that to grab it as a base point for Polar-tracking to the 135-degree direction from there.

Use the Polar tracking command and place two lines from the center of the arc and use them to break the arc. Terry Florida Drafting and Design Services

[QUOTE=TerryinTampa]
Use the Polar tracking command and place two lines from the center of the arc and use them to break the arc.....[/QUOTE]
The method I described will do it without drawing any addtional/temporary object(s).  [That's one of the main purposes of Polar/Object-snap Tracking -- you can "get to" various locations in relation to things without needing any object(s) there to snap (or Trim or Extend or whatever) to.]