(a)[1]
Determine the actual distance $AB$.
(b)[1]
Measure the bearing from $B$ to $A$.
(c)[1]
Express the scale 1 cm to 10 km in the form $1 : n$.
(d)[7]
On the scale drawing, shade the area that represents the national park. Keep your construction arcs visible.
(e)[2]
Calculate the lake's actual area.