Prablem:$($C$3)$

Two straights $AI$ and $IB$ have bearings of $N80E$ and $S70E$

respectively. They are to be joined by a circular curve of $300m$

radius. The chainage of intersection point I is $872\mathrm{.}485m.$

Calculate the data $($deflection angles and through chainages$)$

for setting out the curve using $20-m$ standard chords