7. What is the difference in latitude between 12°53′30″N and 07°34′30″S?
Answer
20°28′00″
Explanation
Because the positions are in opposite hemispheres, add their magnitudes: 12°53′30″ + 7°34′30″ = **20°28′00″**. **Key takeaway:** Add latitudes when crossing the equator. **Glossary:** Difference in latitude: angular north–south separation.