A ship at sea is 70 miles from one radio transmitter and 130 miles from another. The angle formed by the rays from the ship to the transmitters measures 130-

Question

Degrees. How far apart are the transmitters?

Answer 1

Cosines theorem,  C^2=A^2+B^2-2*A*B*cos c = 70^2 + 130^2 - 2*130*70*(-0.6428) =

C^2 = 33498.96 => C=√(33498.96) = 183.02 MILES