in the last question there is a formula to determine the radius of the concentric circles to represent the various parallels of latitude. The formula is R.Cot θ. Where R is the radius and θ is the latitude. Moreover the latitudes have to be drawn every 5 degrees. so for 85deg the radius will be 50xCot85 = 4.37cm then for 80deg the radius will be 50xCot80 = 8.82cm and so on. Hope this helps. Finally, composite track was also shown in error but anyone watching can easily correct it.
In what latitude will one minute of the Longitude scale on a Mercator chart equal to 2.5 minutes of the Longitude scale Jan 24 paper 1, Question 8a, solution plz
there was a mistake in composite circle part in last question, vertex is on 70 deg so from 60 deg to 70 deg it should be straight line after that curved along 70 deg circle.
