Descriptive geometry . 33 28 Problems 1-4. Determine the true size of the diedral angle between planes N and T. (Arts. 83-85Problems 5-8. Determine the true sizes of the diedral angles of the objects. (Arts. 83-85, pages pages, 57,57, 58.) Unit of measure, J inch. Space required for each problem, 2^ x 3 inches. Angles between GL and traces of p| A-fC 1Qplanes, multiples of 15°. Measurements from GL, in light type, and from right-hand division line, in heavy type. »-A It. 1 O \l4 2 \8 4 ^-^ ^^ J^^ 7 6 12/ 6 12/^ ^ 78 . 8 /16/ / ^y^ ^^ S 9 vs . 10 11 I^S , 12 HS ^^ c * 0 //S ^ 1 Determine the an
Descriptive geometry . 33 28 Problems 1-4. Determine the true size of the diedral angle between planes N and T. (Arts. 83-85Problems 5-8. Determine the true sizes of the diedral angles of the objects. (Arts. 83-85, pages pages, 57,57, 58.) Unit of measure, J inch. Space required for each problem, 2^ x 3 inches. Angles between GL and traces of p| A-fC 1Qplanes, multiples of 15°. Measurements from GL, in light type, and from right-hand division line, in heavy type. »-A It. 1 O \l4 2 \8 4 ^-^ ^^ J^^ 7 6 12/ 6 12/^ ^ 78 . 8 /16/ / ^y^ ^^ S 9 vs . 10 11 I^S , 12 HS ^^ c * 0 //S ^ 1 Determine the angle between plane S and V and H. (Art. 86, page 58.) Note. —Letter the angle w^ith V as x, and w^ith H as y. Unit of measure, | inch. Space required for the problem, 7 X lO inches. PLATE 19. rp-
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