Points R and S are two points on the surface on a latitude 48°S. The two points lie on longitudes 34°W and 146°E respectively. By taking the earth’s…

Question

Points R and S are two points on the surface on a latitude 48°S. The two points lie on longitudes 34°W and 146°E respectively. By taking the earth’s radius to be 6370km, calculate the distance from R to S along a parallel of latitude. (Take π = 22/7)

[sin 48° = 0.7431, cos 48° = 0.6691, tan 48° = 1.1106]
[sin 34° = 0.5592, cos 34° = 0.8290, tan 34° = 0.6745]
[sin 146° = 0.5592, cos 146° = -0.8290, tan 146° = -0.6745]

Answer 1

Points R and S are two points on the surface on a latitude 48°S. The two points lie on longitudes 34°W and 146°E respectively. By taking the earth’s radius to be 6370km, calculate the distance from R to S along a parallel of latitude. (Take π = 22/7)

[sin 48° = 0.7431, cos 48° = 0.6691, tan 48° = 1.1106]
[sin 34° = 0.5592, cos 34° = 0.8290, tan 34° = 0.6745]
[sin 146° = 0.5592, cos 146° = -0.8290, tan 146° = -0.6745]

5,339 km
8,931 km
2,669 km
13,396 km ✓

Explanation

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Organizations: UN (global peace and cooperation), AU (African unity), ECOWAS (West African integration). Treaties and conventions establish rules. International law has limited enforcement.

Nigerian foreign policy principles: Africa as centerpiece, good neighborliness, non-interference, commitment to UN and AU. Nigeria has played peacekeeping roles in Liberia, Sierra Leone, and Sudan.