JAMB - Mathematics (1987 - No. 33)
What is the circumference of latitude 0°S if R is the radius of the earth?
R cos\(\theta\)
2\(\pi\) R cos \(\theta\)
R sin \(\theta\)
2\(\pi\) R sin \(\theta\)
Explanation
Circumference of Latitude 0oS where R is the radius of the earth is = 2\(\pi\) R cos \(\theta\)