What is the difference in latitude between 12°53′30″N and 07°34′30″S?
Answer
20°28′00″
Explanation
Because the positions lie in opposite hemispheres, add their magnitudes: 12°53′30″ + 7°34′30″ = **20°28′00″**. Subtracting would be appropriate only if both latitudes were in the same hemisphere. **Key takeaway:** Opposite-hemisphere latitude differences are found by addition. **Glossary:** Difference in latitude: angular north–south separation.