Descriptive geometry . 10 20 II. 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 bet-ween GL and traces ofplanes, multiples of 15°. Measurements from GL, in light type, and from right-hand division line, in heavy type. PLATE 6

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