Equal trihedral angles

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Illustration used to show that two trihedral angles are equal or symmetrical when the three face angles of the one are respectively equal to the three face angles of the other.

Keywords

plane, lines, angles, planes, polyhedral angle, equal trihedral

Galleries

Polyhedral Angles

Source

G.A. Wentworth Plane And Solid Geometry (Boston: Ginn & Company, 1899) 286

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