Geodaesia : or, The art of surveying and measuring land made easy (1768)
Love, John, fl. 1688, Clark, Samuel · London : Printed for J. Rivington · leaf 172
he trian-gle as demanded. Of dividing four-Jided figures or trapezia. Before I begin to teach you how to divide pieces of land of four fides, it is convenient firft to mew you how to change any four-fided figure into a tri- 3 angle •> Of Dividing Lands. 149 angle j which done, the work will be… … obfcure line BD, and from C make a line parallelthereto, as CE 5 extend alfo the bafe AD, till itmeet CE in E: then draw the line B E, which (hallmake the triangle BAE equal to the trapeziumABCD. Now to divide this trapezium according to anyafiigned proportion, is no more than to divide thetriangle…
Surveying
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