Solve for d Spherical triangle whose parts
are C = 89, a = 70°, b = 60°
please show me ste
To find c, use the law of cosines.
cosc = cosa cosb + sina sinb cosC
cosc = cos70° cos60° + sin70° sin60° cos89°
c = 79°
Now you can use the law of sines to find A,B.