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To work with arcs

Arcs are the curved objects which can be made by many combinations of  3points, by specifying start, center, angle, length, end, direction, radius.

To draw arcs in clockwise direction.
    Arcs always traces anti clockwise direction, if you want to change the tracing of arc in clockwise direction then press ctrl and start tracing you arc.

Draw an arc by specifying 3 Point method.
  1. Click Home tabDraw panel Arc drop-down 3-Point.  Find
  2. Specify the start point.
  3. Specify a point on the arc.
  4. Specify the endpoint
OR

Command: A (Enter)
ARC
Specify start point of arc or [Center]: Click

Specify second point of arc or [Center/End]: Click

Specify end point of arc: Click

Draw an arc by start center endpoint.
  1. Click Home tabDraw panel Arc drop-down Start, Center, End.  Find
  2. Specify a start point.
  3. Specify the center point.
  4. Specify the endpoint.
OR

Command: A ARC

Specify start point of arc or [Center]: Click to specify start point

Specify second point of arc or [Center/End]: C (Enter) // This will prompt autocad that next point will be center point of arc.

Specify center point of arc: Click

Specify end point of arc (hold Ctrl to switch direction) or [Angle/chord Length]: Click.

Continue tangential line with arc:
  1. Complete the arc.
  2. Click Home tabDraw panelLine.  Find
  3. Press Enter at the first prompt.
  4. Enter the length of the line and press Enter.
Continue an arc with tangential line:
  1. Complete the arc.
  2. Click Home tab  Draw panel  Arc drop-down  Continue.  Find
  3. Specify the second endpoint of the tangent arc.

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