Emerson, William, 1701-1782 · London : Printed for J. Nourse · leaf 199
SL.p.iS … o Sea. IX. OF THE SPHERE. 19 Cor. 3. If ^ he the projected center of any circle Ylg,EFG, any right lines EG, FH faffing thro^ P will 20.intercept equal arches EF, GH. For in any circle of the fphere, any two lines,pafling thro the center, intercept equal arches;and thefe are projefted into right…
Mechanical engineering
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