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| Q.92 | Which of the following formulas explains the calculation of area of earthwork using its mean depth? Area = BD + Sd2 Where, B = Breadth of section D = Mean depth of section Sd = Areas of sides | |
| Ans | 1. Average area formula | |
| 2. Prismoidal formula | ||
| 3. Mid-section formula | ||
| 4. Trapezoidal formula |
Correct Ans: 3
