Assertion: tetrahedron's triangle | /r/MadeOf | uniform sheet of material
Facets:
Source sentences:
text: The centroid is also the physical center of mass if the triangle is made from a uniform sheet of material; or if all the mass is concentrated at the three vertices, and evenly divided among them.
text: The centroid is also the physical center of mass if the triangle is made from a uniform sheet of material; or if all the mass is concentrated at the three vertices, and evenly divided among them.