Show that the z-coordinate of the centroid of the tetrahedron bounded by the coordinate
Chapter 15, Problem 20(choose chapter or problem)
Show that the z-coordinate of the centroid of the tetrahedron bounded by the coordinate planes and the plane x a + y b + z c = 1 in Figure 14 is z = c/4. Conclude by symmetry that the centroid is (a/4, b/4, c/4).
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