Emerson, William, 1701-1782 · London : Printed for J. Nourse · leaf 185
R l,p,S. … r Sea. I. OF THE SPHERE, &c. 9 Fig. Otherwife thus. g On the diameter ED, defcribe the femicircleEND, draw AN, BO, LP perpendicular to ED,then ON is the meafure of BA, and NP of AL5and ON or NP may be meafured as in Prop. IX, By the fcale. Let AL be to be meafured. Draw CD ; andLM parallel to…
Mechanical engineering
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