Show that $BC$ is $7.05$ km, correct to $2$ decimal places.
(c)[3]
Calculate the minimum distance from $B$ to $AC$.
(d)[4]
Calculate the length of the straight line $BD$.
(e)[2]
Find the bearing of $D$ from $C$.
Worked solution & mark scheme
This 16-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Apply the cosine rule in the form cos = (14^2 + 12^2 - 9^2) / (2 \times 14 \times 12)” …