A plane flew at 212 degree from City W for 2 hours at 217 mph and then at 302 degree for 1.5 hours t 244 mph. In what direction must the fly to return directly back to City W.

A roof 20 by 30 feet, the later being the horizontal dimension, is inclined at an angle 30 dergee to the horizontal. Find the angle that diagonal of the roof makes with the horizontal.

A ship is sailing due east when a light is observed bearing N 62 degree E. After the ship has traveled 2200 ft. the light bears N 48 degree E. If the course is continued, how close will the ship approach the light?