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A. straight below centroidal axis B. parabolic with convexity downward C. parabolic with convexity upward D. straight above centroidal axis E. none of these
Posted by Civil Engineer
Asked on August 20, 2016 12:46 pm
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B. parabolic with convexity downward

Posted by Civil Engineer
Answered on August 20, 2016 12:46 pm