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The complete measurer; or, The whole art of measuring .. (1789)
Hawney, William · London : Rivington · leaf 302
f the Ring, orPart of the Stone which mufl be ground down by thefirll. Then, from 220 fubtra<5l 120, and there remains100, whofe fquare Root is lO; fubtraci that from1 : 83, and there remains 4.83 inches, the Breadthof the Ring, or Part to be ground down by the fe-cond Man. The third mutl gcind… … FIrfl, upon the Center O ftrlke the Circle ABCD,and crofs it at right Angles with the two DiametersA^ and CD : Then divide the Seinidiameter A O(which fuppofe 20) in Proportion to 9s. 6s. and 55,(the feveral Sums paid by the three Men) by thePoint E and F; fo Ihall AE be 9, EF 6, and F © 5 :Then…Measurement · Geometry
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