1.

In using the two-theodolite method for setting curves, the principle used is

A. deflection angle is equal to the tangential angle for any chord to the point
B. angle of intersection is the same as the angle subtended at the centre
C. deflection to any point P from the first tangent is the same as the angle between the long chord and the direction to P from the second tangent point
D. equal chords subtend equal angles at the centre
Answer» D. equal chords subtend equal angles at the centre


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