The complete measurer; or, The whole art of measuring .. (1789)
Hawney, William · London : Rivington · leaf 135
17639<a Subtrsihi 45.6 Arch Line«777 Half. 1140 5^8.60 the Area* >^gain : Let LMNO be a Sedor greater than «Semicircle, whofe Semidiameter I,0 or NO is 20.6,and by the Rule, Pag. 112, half the Arch, or M r N,is found to be 42.333 ; which, multiplied by 20.6,the Semidiameter, makes 872.0598… … 20.3 Chord Nf.8 162.4 35.4 Chord MN. 3)127.0 42.3J20.6 253(;j98846660 872.0598 Area. 42.333 Arch Line, M ^ N. § XIII. Of the Segment of a Circle. A Segment of a Circle is a Part terminated by aRight Lins Jefs than the Diameter, called aChord, and by a Part of tlie Circumference. To find the Area of…
Measurement · Geometry
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