Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 58
r triangular prism placed successively in thefour quadrants. The long edges of the prism are parallel toboth H and V, and in each quadrant the upper front lateralface makes an angle of 15° with //. In each position the right-hand end is shown in the profile view. The student shouldvisualize the… … Fig. 68. Fig. 69. 3d Quadrant \ \\ \ 4-th Quadrant I r~r l ,15
Geometry, Descriptive
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