The Scientific American reference book; a compendium of useful information, containing the complete census of the United States by counties ... patent and copyright laws ... forms for patents, caveats, assignments, and licenses ... etc (1892)
New York, Munn · leaf 136
lem 2.—To find the side of asquare that shall be any number oftimes the area of a given square:Let A B C D be the given square;then will the diagonal B D be the sideof a square A E F G, double in area to the given square A B 0 D ; the di-ll E B A agonal B D is equal to the line A G;if the diagonal… … 134 PRACTICAL GEOMETRY.
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