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Practical plane and solid geometry for advanced students, including graphic statics, adapted to the requirements of the South Kensington syllabus (1899)

Harrison, Joseph, Baxandall, George Albert · London Macmillan · leaf 378

An illustration from Practical plane and solid geometry for advanced students, including graphic statics, adapted to the requirements of the South Kensington syllabus, 1899, leaf 378
Prob. 296 by circumscribingboth spheres by the same cone. The plane which passesthrough the given point and touches this cone must satisfythe given conditions. There are two such cones, one of which has its vertexbetween the spheres. Thus there are in general fourtangent planes, two being found… … V, IV of two cones which envelop any two of the threepairs; then determine a plane which contains VW andtouches any of the spheres. The projections of V and W are found by drawing thecommon tangents to the projections of the spheres, andthe solution of the problem is then the same as that ofProb.…

Geometry, Descriptive -- Problems, exercises, etc · Geometry, Plane -- Problems, exercises, etc · Graphic methods

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