Area/Volume
Calculate the area, volume, mass, and moments of inertia of one or more objects. If an object isn't a closed solid, open edges are displayed in red.
Calculate the Area and Volume
Calculate the area and volume of one or more objects.
Calculate the Mass and Moments of Inertia
Calculate the mass and moments of inertia of one or more objects.
 On the ribbon, click the Analysis tab.

Click the Area/Volume icon.
 Click an object.

Choose from the following options:
Option Description Units > Mass Choose from the following units:  mg
 g (default)
 kg
 lb
Density Define the density, and choose from the following units:  g/cm3 (kg/l)
 kg/m3
 lb/in3
 lb/ft3
Center of Mass Define the x, y, z coordinates of the center of mass. Display > Center of mass Display the center of mass in the modeling window. Display > Principal Axes Display the principal axes in the modeling window. 
The following information is displayed:
Parameter Description Mass The mass, based on the density and the units for mass. Moments of Inertia  Ixx Iyy Izz: The moments of inertia about the axes oriented as global x, y, z and passing through the center of mass.
 Iyz Ixz Ixy: The products of inertia about the axes oriented as global x, y, z and passing through the center of mass.
 Principal moments: The moments of inertia about the three principal axes.
 Principal axis X: The x, y, z coordinates of the first principal axis.
 Principal axis Y: The x, y, z coordinates of the second principal axis.
 Principal axis Z: The x, y, z coordinates of the third principal axis.
 Rightclick and mouse through the check mark to exit, or doublerightclick.