Within the diagram, both $OC$ and $OA$ make angles of $70^{\circ}$ with the North line. $\angle AOB = x^{\circ}$ and $\angle BOC = y^{\circ}$.
(a)[2]
$x:y = 3:7$. Work out the value of $x$.
(b)[1]
State the bearing of $C$ from $O$.
(c)[1]
State the bearing of $O$ from $A$.
Worked solution & mark scheme
This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Applies $\frac{360 - 140}{10}$.” …
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