geometry

[franklin91]

Town A and Town B lie approximately on the same meridian. Town A has latitude 20° N and Town B,15° N. Find the distance between these two cities. (The radius of the Earth is 3960 miles.)

I dont know where to start and was wondering how I set this type of problem up....thank you for the help

 

[tkhunny]

Draw a circle.
Indicate an horizontal diameter.
Place two points on teh circle, one a little above the diameter and the other a little higher on the same side.

Ponder the drawing and let's see what you get.