I need help with these people and thank you

Two fire-lookout stations are 190 miles apart, with station a directly south of station b. both stations spot a fire. the bearing of the fire from station a is upper n 55 degrees upper e and the bearing of the fire from station b is upper s 60 degrees e. how far, to the nearest tenth of a mile, is the fire from each lookout station?

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Ihonestly have no clue if it's each or none.