gravity. Drop the perpendiculars EF to abXbgX^bc=^bd ; and that the mo- and DH upon the base. Observe that ment of resistance is represented by the DE = f£, AF + CH=i&; the altitude of static moment of the pyramid. The cen- BED=fc? and EF = £tf. Also that the ter of gravity of the pyramid is at a… … Fig. 26 To find the moment of resistance of a BEB=^m(W2^21b<P triangle ABC (Fig. 17) about an axis coinciding with the base ; we observe that the moment of resistance of this the moment of resistance of triangle is equal to that of the parallelo- EAFxDHC=4 of i(mW=2^fbd> gram ABCD less that of the…
Engineering
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