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Find the correction applied for two-level section if area of cross sections at different sides were given as 115.31, 165.72 and 65.87, 54.23,which unit distant apart having number of sides 2.

Find the correction applied for two-level section if area of cross sections at different sides were given as 115.31, 165.72 and 65.87, 54.23,which unit distant apart having number of sides 2. Correct Answer 459.33

The formula for correction of two-level section can be given as Cp = d*(w-wꞌ)*(w1-w1ꞌ) / 6*n. on substitution, We get Cp = 1 (115.31-65.87)*(165.72-54.23) / 6*2 = 459.33.

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