The complete measurer; or, The whole art of measuring .. (1789)
Hawney, William · London : Rivington · leaf 145
Area Sfg-=xneut iiNB. § XVL 128 Menfuration cf Superficies, Part 11.§ XVI. Of a Parabola. A Parabola is a curvillneal Figure, made by theSedion of a Cone, being cut by a Plane paral-lel to one of its Sides. Every Parabola is Two-thirds of its circumfcribingParallelogram j therefore to find the… … ^ J J^ J lA 33-75 Ck ap, I, Menfuration of Superfjcies. 129 53.75 the Ordinate GH.39.25 the Perpendicular EF, 2687;10750 4837516125 2109.6875 3)4219.3750 1406,4583 the Area* Demonjlration. Let FH, the Semi-ordlnate, be di-vided into four equal Parts, or into ?).\6, iufc. andthrough the Divilions…
Measurement · Geometry
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