Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 252
e known. The true size is found here by revolving about the diameterl-5, which is parallel to V. Then the true size is shown bythe points 2r, 3r, etc. Therefore, in the development, l-2equals l»-2r, 2-3 equals 2-3r, etc. The developed tangent is obtained from the triangle 6-16-s,the points 6 and s… … Fig. 305. 232 DESCRIPTIVE GEOMETRY [XXII, § 180 Problem 42. To find the intersection of the frustum of a cone anda plane. Analysis. See §§ 173, 177. The general principles involved,are the same as in the preceding problem. Construction (Fig. 306). The given frustum is placed in thefirst quadrant,…
Geometry, Descriptive
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