LEGEND:
USCG 2662-NG-3
STEPS
SOLUTION:
GIVEN:
24 '' x 28 ''
1 '' border on all sides
Latitude
42° S
Longitude
175° E
Latitude
37° S
Longitude
179° W
Meridional Parts
Latitude
42° S
2766.3
Latitude
37° S
2378.8
m =
387.5
6° dlo
Longitude
6 x 60 =
360.0 '
Latitude
387.5 meridional parts
Latitude has more meridional parts than Longitude, therefore Latitude gets the larger dimension of 28''
Longitude =
22'' / 360 =
0.06111
x 60
ANSWER
3.667
Select the closest answer.
A) 3.33 inches
B) 3.41 inches
C) 3.67 inches
ANSWER
D) 3.82 inches
Longitude 175° E to 179° W
24'' - 2'' (1'' per side) =
You must construct a Mercator plotting sheet on a piece of paper measuring 24" by 28". The
area includes latitude 37° S to 42° S and longitude 175° E to 179° W. Allow a one inch neat line
on all sides. What is the maximum distance between each degree of longitude that will permit
the area of the plotting sheet to be drawn within the stated limitations?
Blue = information provided.
Red = table values, etc.
Black = calculated values.
Green = ANSWER
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Chart Construction - Mercator Chart Construction
2662-ng-3.pdf
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