In a spherical triangle, c< a+b
I have to talk about this subject in an oral exam for about ten minutes. I don't know how I should explain it.
If you know about a good example too, related to this subject of cource, I would really appreciate it.
Two places, A (66°N and 20°W) and B (66°N and 90°A). Find the distance between them if you go along the 66° latitude (rhumb line).
The Attempt at a Solution
The answer is 4972 km but I don´t know how to calculate this. Please help me.
I have a spherical triangle with the radius 1, and I have tried so hard to find the surface area. I know that A=120°, b=90° and c=60°.
I could calculate that B=73.89° and C=56.31° and a=115.66°.
I think I should use the formula
(ABC) = (A + B + C - pi) r2
I always get the...