Blessing, George F. (George Frederick), 1875-1921, Darling, Lewis A. (Lewis Andrew) · New York, J. Wiley & sons; [etc., etc.] · leaf 186
(a) (b)Fig. 133. — Drawing of a Sphere. isometric drawing of a circle having a diameter D. The radius,R, of the circle which represents the isometric drawing of thesphere is one-half the length of the major axis of the ellipse. To draw a half-sphere construct the outline of the sphere asdescribed…
Mechanical drawing
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