ight-lined figure, it mayberef blued into triangles,and fo a fide of a fquare found equallto euery trianglej and thefe being reduced into one equalliquare, it (hall be equall to the whole right-lined figuregiuen. Ttfinde a proportion betweene Superficies> though the) bewith one to the other. IF… … * Let the Superficies giuen, betheoblonge^, and the tri-angle B. Firft between the vnequall fides of A>\ find a meaneproportionall, and note it in C: thisis the fide of a fquareequall vnto A. Then betweene the prependicular of B, andhalfe his bafe, I finde a meane proportionall, and note it inB:…
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