They have asked for an average track
and, strictly speaking, it should be measured at the mid-point.
However, this is a relatively short
and predominantly North/South track so there will be very little difference
between the initial and mean track.
Having drawn the line from CRN to KER
put the protractor over CRN and align it with magnetic
North (the 090ºM radial on the chart will help with this
alignment).
Note the track CRN-KER is 205ºM so
the track KER-CRN is 025ºM.
Look at the answers –there is no need
to measure the distance because it’s 70 or 71 nm and the bearing is enough to
answer the question.