A text book of elementary mechanics, for the use of colleges and schools (1881)
Dana, Edward Salisbury, 1849-1935 · New York, J. Wiley & sons · leaf 192
of the two diagonals. Let A BCD (Fig. 99) be aparallelogram whose diagonals intersect at G ; this pointis the centre of gravity. Draw any line dgb parallel tothe diagonal DGB; it is bisected by the other diagonalAGC. For from the similar triangles Adg, ADG, andAgb, AGB, da Aq , qb Aq DG~~ AG GB AG…
Mechanics
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