Descriptive geometry for students in engineering science and architecture; a carefully graded course of instruction (1915)
Armstrong, Henry F. (Henry Fry), 1868- · New York, J. Wiley & sons, inc.; [etc., etc.] · leaf 104
plane and the projectionsof the tangent point. EXKRCISK XXXVII 1. Find the planes tangent to the sphere whose projections are at .1, each containing apoint on its surface, for which /> is the elevation. 2. A sphere, 2 diameter, touches both planes of projection. Find the two planes, eachtouching… … 4. Find the traces of a plane tangent to the sphere whose projections are at C, and makeit perpendicular to the line AB, whose projections are given. Mark the plan and elevationof the tangent point. 5. Find the traces of three planes equally inclined to each other and all at 60^ to the H.T.Let ihcm…
Geometry, Descriptive
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