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Determine the best slope for the most economical trapezoidal section or Prove That trapezoidal section is most economical if$ \theta = 60^0, b=2d/ \sqrt{3}, P=3b. $
written 6.3 years ago by
mitali.poojari1908
• 400
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modified 2.4 years ago
by
sagarkolekar
★ 11k
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