Introducing drawing - Introduction to AutoCAD 2011: 2D and 3D Design - page 45

Fourth example - Polyline tool ( Fig. 2.26 )

Left -click the Polyline tool icon. The command line shows:

Command:_pline Specify start point: 80,170
Current line width is 0
Specify next point or [prompts]: w (Width)
Specify starting width <0>: 1
Specify ending width <1>: right-click
Specify next point or [prompts]: a (Arc)
Specify

endpoint of arc or [prompts]: s (second pt)
Specify second point on arc: 160,250
Specify end point of arc: 240,170
Specify end point of arc or [prompts]: cl (CLose)
Command:
And the circle Fig. 2.26 is formed.

160,250

80,170 240,170

Fig. 2.26 Fourth example - Polyline tool

Fifth example - Polyline tool ( Fig. 2.27 )

Left -click the Polyline tool icon. The command line shows:
Command:_pline Specify start point: 60,180
Current line width is 0
Specify next point or [prompts]: w (Width)
Specify starting width <0>: 1
Specify ending width <1>: right-click
Specify next point or [prompts]: 190,180
Specify next point or [prompts]: w (Width)
Specify starting width <1>: 20
Specify ending width <20>: 0
Specify next point or [prompts]: 265,180
Specify next point or [prompts]: right-click
Command: