2. To set the dimension style refer to icon format.

4. Dimension line:A line that indicates the direction and extent of a dimension. For angular information line is an arc.

5. Extension lines: The lines extend from the feature being dimensioned to the dimension line.

6. Arrowheads: Termination point at 2 end of the dimension line.

7. Dimension text: text string that indicates the actual measurement.

8. Leader: A line leading from some annotation to a referenced feature.

9. Centre mark: A small cross that marks the centre of a circle or arc.

10. Centre lines: Broken line that mark the centre of a circle or arc

11. Dimensioning System Variable and Style

12. Dimensioning system variables are used to control the appearance of dimensions. The variable can be set on the command line or through the Dimension Style (DDIM) dialogue boxes.

13. A dimension style can be used to manage all the dimensioning system variable easily and quickly. It consist of a named group of dimension setting that determines that appearances of the dimension. By creating styles the user can quickly and easily set all relevant dimensioning system variable and control the layout and appearances of any dimension. To select a dimension style the user needs to open the Dimension Style dialog boxes by clicking Dimension Style from the dimension toolbar or data from the pull down menu, then choose a style from the current list and then click OK. The setting for the style chosen will be applied on the subsequent dimensions.

15. Name-creates or rename a new dimension style family.

16. Save-saved a dimension style.

17. Rename- rename a dimension style.

18. Family

19. Determine which dimension style family member is currently displayed in the dialog box. To specify the setting for a dimension style family, select the family member option the dimension on such as Parent, Linear or Radial, make changes to the dimension style and the choose save.

20. Geometry-

21. Display the geometry dialog box. It control the appearances of the geometry and overall scale of the dimension.

22. Format

23. Display the format dialog box. It control the location of dimension text.

25. There are 2 method of creating dimension. The first method is by selecting an object to dimension and specifying the dimension line location. The second method is by specifying the extension line origins.

26. 1.4.1Linear Dimension

27. Linear consist of horizontal, vertical, aligned, ordinate, baseline, and continues dimension.

28. Horizontal-choose linear dimension from the dimensioning toolbar.

29. Vertical-choose linear dimension from the dimensioning toolbar.

30. Aligned-choose aligned dimension from the dimensioning toolbar

31. Ordinate-choose ordinate dimension from the dimensioning toolbar

32. Baseline-choose baseline dimension from the dimensioning toolbar

33. Continue-choose continues dimension from the dimensioning toolbar

34. radial dimension

35. it measure the radius and diameter of arc and circle with optional centre lines or centre mark. Choose diameter dimension from radial dimension flyout on the dimensioning toolbar.

36. angular dimension

38. The object was drawing refer to the scale given.

39. The uses suitable command:

40. Layer

41. Offset

42. Trim

43. Dimension

44. Circle

45. Fillet

46. The suitable object snap is always uses.

47. The from VIEW>TOOLBARS, select the dimension option.