some more problems...
Q4
The total length of the 53°N parallel of latitude on a direct Mercator chart is 133 cm. What is the approximate scale of the chart at latitude 30°S?
A)1 : 30 000 000 B)1 : 18 000 000 C)1 : 21 000 000 D)1 : 25 000 000
Q5
The constant of the cone, on a Lambert chart where the convergence angle between longitudes 010°E and 030°W is 30°, is:
A)0.50 B)0.64 C)0.75 D)0.40
THX......