Here is a list of the parts of a dimension along with their descriptions.

Dimensions have several distinct elements: dimension text, dimension lines, arrowheads,
and extension lines.

Dimension text is a text string that usually indicates the measurement value. The text can also
include prefixes, suffixes, and tolerances.

A dimension line indicates the direction and extent of a dimension. For angular dimensions, the dimension
line is an arc.

Arrowheads, also called symbols of termination, are displayed at each end of the dimension line.
You can specify different sizes and shapes for arrowheads or tick marks.

Extension lines, also called projection lines or witness lines, extend from the feature to the dimension
line.

A center mark is a small cross that marks the center of a circle or arc.

Centerlines are broken lines that mark the center of a circle or arc.

Learning AutoCad

re is a list of the parts of a dimension along with their descriptions. Dimensions have several distinct elements: dimension text, dimension lines, arrowheads, …parts of a dimension along with their descriptions. Dimensions have several distinct elements: dimension text, dimension lines, arrowheads, …dimension of a mathematical space (or object) is informally … For example, a point on the unit circle in the plane can be specified by two Cartesian coordinates, but … An algebraic set being a finite union of algebraic varieties, its dimension is the maximum of the dimensions of its components.dimensions are comprised of four components: Extension Lines … placed outside the part. Center lines or marks should be used on all circles and holes.components of a dimension, AutoCAD … You may leave this layer ON all the time because the entities on this layer will not be …dimensions. ○ Parts are dimensioned based on two criteria: ○ Basic size and locations of the features. ○ Details of a part's construction and for.on, like the part you show above, so the dimension tool know the different between an …on the object to the dimension line. … To properly dimension a drawing, it is important to know the intended design of the part …parts of three-dimensional figures and prisms, by locating faces, bases, vertices, edges, and height.