Example $1$:

Two straight alignments of a road intersect at a chainage $(250+15),$ the angle of intersection being $120.$ If the radius of a simple circular curve introduced is $600m,$ find the

$($i$)$ tangent distance

$($ii$)$ length of the curve

$($iii$)$ chainage at the tangent points

$($iv$)$ long chord

$($v$)$ apex distance and

$($vi$)$ versed sine

Assume that the length of the chain is $30m$

Simple Circular Curv