Someone plz explains this to me

The tangent of an angle is not which of the following? a) ratiob) proportionc) fractiond) opposite over adjacent

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?

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3