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Illustration showing two prisms are equal if the three faces which include a trihedral angle of the one are respectively equal to three faces which include a trihedral angle of the other, and are similarly placed.
Keywordsprism, angles, Polyhedron, polygon, prisms, solids, geometric solid, equal polygons, equal prisms, trihedral angle
G.A. Wentworth Plane And Solid Geometry (Boston: Ginn & Company, 1899) 294
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