2 ms·

Yes with regard to the surface of the earth. Take the lines tangent to the meridian & parallel at the point of intersection. Observe these lines are perpendicu

Yes with regard to the surface of the earth. Take the lines tangent to the meridian & parallel at the point of intersection. Observe these lines are perpendicular. Hence the meridian & parallel meet at a right angle.

simonh 6y ago
What about the ‘boxes’ where the top edge is, er, the point at one of the poles?
- tantalor 6y ago
  Yeah not the pole of course, but you can cut them off at at ±89.999 degrees and it still works.
doersino 6y ago
You’re right, I apologize for my smartass answer.