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AutoCAD exercise: a plot of land

Draw a plot of land in AutoCAD from its sides' lengths and angles with polar coordinates, then measure its area and dimension it. Free, step by step, online.

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Draw this plot of land, in metres, from its sides' lengths and directions: 40 at 0°, 30 at 80°, 35 at 155° and 25 at 230°, then back to the start. Measure its area and perimeter, and dimension each side and the angle at its second corner. Polar coordinates, a length and an angle, draw each side from the end of the one before. The drawing's dimension scale is set for metres.

The drawing

A plot of land of five sides, in metres, each side dimensioned and one angle.4030352525,32100°
A plot of land of five sides, in metres, each side dimensioned and one angle.

Step by step

The engine draws each step and writes its history as you would type it: the prompts in AutoCAD 2027's order, with the same option letters. After a command's first point, a typed point is measured from the last one, as dynamic input measures it, and the history writes it with @; # measures from the origin.

1. Draw the boundary

On the Outline layer, PLINE from 0,0, then each side as its length and its angle: 40<0, 30<80, 35<155 and 25<230, each measured from the last point. Close draws the fifth side and closes the boundary: one object, which AREA can measure.

1. Draw the boundary
  1. Command: PLINE
  2. Specify start point: 0,0
  3. Current line-width is 0.00
  4. Specify next point or [Arc/Halfwidth/Length/Undo/Width]: @40<0
  5. Specify next point or [Arc/Close/Halfwidth/Length/Undo/Width]: @30<80
  6. Specify next point or [Arc/Close/Halfwidth/Length/Undo/Width]: @35<155
  7. Specify next point or [Arc/Close/Halfwidth/Length/Undo/Width]: @25<230
  8. Specify next point or [Arc/Close/Halfwidth/Length/Undo/Width]: C
1. Draw the boundary

2. Measure its area

AREA, then Object, and pick the boundary: the command line gives its area, in square metres, and its perimeter.

2. Measure its area
  1. Command: AREA
  2. Specify first corner point or [Object/Add area/Subtract area] <Object>: O
  3. Select objects:
  4. Area = 1620.90, Perimeter = 155.32
2. Measure its area

3. Dimension it

On Dimensions, DIMALIGNED and Enter at its first prompt: it then asks for an object, and a pick on a side dimensions that side, parallel to it. Place each one outside the plot. DIMANGULAR on the two sides that meet at 40,0 gives the angle between them, 100°.

3. Dimension it4030352525,32100°
  1. Command: DIMALIGNED
  2. Specify first extension line origin or <select object>:
  3. Select object to dimension:
  4. Specify dimension line location or [Text/Angle]:
  5. Dimension text = 40
  6. Command: DIMALIGNED
  7. Specify first extension line origin or <select object>:
  8. Select object to dimension:
  9. Specify dimension line location or [Text/Angle]:
  10. Dimension text = 30
  11. Command: DIMALIGNED
  12. Specify first extension line origin or <select object>:
  13. Select object to dimension:
  14. Specify dimension line location or [Text/Angle]:
  15. Dimension text = 35
  16. Command: DIMALIGNED
  17. Specify first extension line origin or <select object>:
  18. Select object to dimension:
  19. Specify dimension line location or [Text/Angle]:
  20. Dimension text = 25
  21. Command: DIMALIGNED
  22. Specify first extension line origin or <select object>:
  23. Select object to dimension:
  24. Specify dimension line location or [Text/Angle]:
  25. Dimension text = 25.32
  26. Command: DIMANGULAR
  27. Select arc, circle, line, or <specify vertex>:
  28. Select second line:
  29. Specify dimension arc line location or [Text/Angle]:
  30. Dimension text = 100
3. Dimension it

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