(a)[1]
State the bearing of $A$ from the boat.
(b)[2]
Calculate the least distance between the boat and $B$.
(c)[2]
Find the boat’s distance from $A$ when it is due east of $B$.
(d(i))[2]
After travelling $24\text{ km}$, the boat arrives at point $X$. Label $X$ on the diagram.
(d(ii))[3]
A second boat is less than $12\text{ km}$ from $A$ and is closer to $BC$ than to $BA$. Shade the area where this second boat can be.
(d(iii))[2]
Point $Y$ is where the second boat is furthest from $X$. Mark and label $Y$ on the diagram, then use it to find the maximum possible distance between the two boats.