It is required to connect two straights whose intersection angle is $17136{00}^{}$ by a circular curve of

radius $900m.$ If the through chainage of the intersection point is $6427\mathrm{.}46m$;

a$.$ Calculate the length of the curve.

$(2$ marks$)$

b$.$ Calculate the through chainages of the two tangent points.

$(2$ marks$)$

c$.$ Make a table of setting out data at $20m$ multiples through chainage using tangential arigles method.

$(6$ marks$)$

d$.$ Outline the field procedure you will adopt to set out the results in $2c)$ above.

$(3$ marks$)$