1. Objectives:
1. Use trig to solve navigation and
surveying problems.

2. “Course” of a Ship/Plane
The course of a ship or plane is the
angle measured clockwise from north
to the direction of travel.

3. Compass Bearings
The compass bearing of one
location from another is measured
the same way.
Bearings are given
with 3 digits:
Ex: 060° rather
than 60°

4. Example 1:
A ship travels on a course of 300° for
2 hours at a speed of 15 knots
(1 nautical mph). Then it changes
course to 230°, continuing at 15 knots
for 3 more hours. At that time, how far
is it from its starting point?

6. Example 2:
Town T is 8 km northeast of village V.
City C is 4 km from T on a bearing of
150° from T. What is the bearing and
distance of C from V?

8. You Try!
A plan flies 600 km on a course of
300°. It then flies south for a while
and finally flies on a 40° course to
return to its starting point. Find the
total distance traveled.