A(30°N,20°W)
B(30°N,40°E)
are two points on the earth surface, calculate to 3 significant figure :...
A(30°N,20°W)
B(30°N,40°E)
are two points on the earth surface, calculate to 3 significant figure :...
A(30°N,20°W)
B(30°N,40°E)
are two points on the earth surface, calculate to 3 significant figure :
1:the length of the chord AB
2:the distance between AB along the parallel of latitude
3:the shortest distance between AB?
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