Anthony, Gardner Chace, 1856- [from old catalog], Ashley, George Francis, [from old catalog] joint author · Boston, D. C. Heath & co. · leaf 152
12 ^< Ci/ 1 131 8! 16 „l i L ^\ 1 /* Determine the true size of the polygon by revolving it into V or H. (Art. 43, page 31.)Note. — In Problems 7-12 the traces of the plane of the polygon should first be determined. Unit of measure, | inch. Space required for each problem, 5x7 inches. Angles… … Dravtr the prs. of an equilat-eral triangle on plane N. Itscenter is point a, -6, -4. Oneside of the triangle is 7 unitslong and parallel to V.
Geometry, Descriptive
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