II$.$ Two tangents $AB$ and $BC$ intersect each other at point $B$ with the deflection angle of $25.$ The Chainage of point B is $1400ft.$ It is proposed to insert a simple circular curve of radius $900ft.$ Compute the following parameters of the horizontal curve using the principles of simple circular curve.

$($a$)$ Chainage of both tangent points.

$($b$)$ Length of the curve.

$($c$)$ Length of the long chord.