16667km
28850km
8333km
2233km
Correct answer is A
Length of an area = θ360 x 2πr
Longitude difference = 147 + 153 = 30NoN
distance between xy = θ360 x 2πR cos60o
= 300360 x 4 x 104 x 12
= 1.667 x 104km(1667 km)
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