4. Ex. 2) From a point 65 ft. from the base of a
church, the angle of elevation to the base of
the steeple is 35° and 43° to the top of the
steeple. What is the height of the steeple?
7. Ex. 3) A sailboat leaves the pier due west at
8 knots. After 15 minutes it changes course
N 16° W at 10 knots. Find the bearing and
distance from the pier after 12 minutes on
this new course.