railway RRB JE (CBT I + CBT II) Mock Test 2024 Surveying Curves

Length of long chord in a simple circular curve having central angle θ is

1
R sin \(\frac{\theta}{2}\)
2
2R sin \(\frac{\theta}{2}\)
3
R cos \(\frac{\theta}{2}\)
4
2R cos ​\(\frac{\theta}{2}\) (where R is radius of the curve)
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