A 50 m tape is held 2 m out of line. What is the true length?

A 50 m tape is held 2 m out of line. What is the true length?

Right Answer is:

49.96 m

SOLUTION

Correction of misalignment /slope is given as

C = −h2/2l

where

h = difference in elevations
L = measured length (in m)

C = −22/2 × 50 = −0.04

∴ True length = 50 – 0.04 = 49.96 m

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