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You can also use REGION to convert the plate and the holes to regions, subtract
the holes, and then use the Properties Inspector palette or the LIST command
to find the area of the plate.
TIP Use the CAL command to convert from one system of area units to another.
Calculate Mass Properties
With the MASSPROP command, you can analyze 3D solids and 2D regions
for their mass properties including volume, area, moments of inertia, center
of gravity, and so on. In addition, the result of the computations can be saved
to a text file.
See also:
Create and Combine Areas (Regions)
Overview of Object Properties
Use a Calculator
You can access a calculator function as you work with the program. You can
use the CAL command at the Command prompt transparently while a
command is active or not.
Use the Command Prompt Calculator
By entering an expression in the Command prompt calculator, you can quickly
solve a mathematical problem or locate points in your drawing.
The CAL command runs the 3D calculator utility to evaluate vector expressions
(combining points, vectors, and numbers) and real and integer expressions.
The calculator performs standard mathematical functions. It also contains a
set of specialized functions for calculations involving points, vectors, and
AutoCAD LT geometry. With the CAL command, you can
Calculate a vector from two points, the length of a vector, a normal vector
(perpendicular to the XY plane), or a point on a line
Calculate a distance, radius, or angle
Specify a point with the pointing device
Specify the last-specified point or intersection
170 | Chapter 6 Create and Modify Objects
(page 191)
(page 99)
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