The volumes of two similar tetrahedrons are to each other as the cubes of their homologous (corresponding) edges.
G.A. Wentworth Plane And Solid Geometry (Boston: Ginn & Company, 1899) 328
2400×1272, 222.6 KiB
1024×542, 32.1 KiB
640×339, 17.1 KiB
320×169, 6.9 KiB