Science and art drawing : complete geometrical course ; consisting of plane and solid geometry, orthographic and isometric projection, projection of shadow's the principles of map projection, graphic arithmetic and graphic statics (1895)
Spanton, J. Humphrey (John Humphrey) · London : Macmillan · leaf 493
Fig. 268. 472 SOLID GEOMETRY chap. Problem 219, 1. To inscribe a given tetrahedron in a sphere. 2. To inscribe a sphere in a given tetrahedron. Tig. 269. The construction of this problem is the same as the one pre- l .4- … Fig. 269. ceding, and as the different parts bear similar letters, the sametext will apply to both. Note.—The inscribed and circumscribing spheres in thisinstance are concentric. Peoblem 220. To project an octahedron in a similar position to a given octa-hedron, but inscribed in a sphere one inch…
Geometrical drawing
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