Young, George, jr, Baxter, Hubert Eugene, joint author · New York, Macmillan · leaf 134
Fio. 114 … 116 DESCRIPTIVE GEOMETRY [VI, 1101 EXERCISE SHEET XLV Find the angle between each of the following pairs of planes.^1. Z (75, Z 60° T, Z 45° r) and Y (55, K* 45° I, Y 45° t). 2. X (50,. X* 60° r, X 45° r) and W (30, TT* 60° I, W 45° /). 3. V (25, I/»60°r, C/»75°r) and V (5, F» 45° Z, 775°0. (See…
Geometry, Descriptive
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