What is the circumference of the circle if the radius is 1?

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?

Franco wants to double the volume of the cone. what should he do?

Hi my sisters and brothers can tell me the answer because i don’t understand the question