(a(i))[2]
Calculate $EF$.
(a(ii))[2]
Calculate angle $BCA$.
(b)[4]
Find the length of each tile.
(c(i))[3]
Using a scale of 1 cm to represent 12 km, complete the scale drawing so that the positions of town $B$ and town $C$ are shown.
(c(ii))[1]
Measure the bearing of town $C$ from town $A$.