These problems provide different contexts in which trigonometry can be used to solve practical problems.
How would you design the tiering of seats in a stadium so that all spectators have a good view?
Make an accurate diagram of the solar system and explore the concept of a grand conjunction.
An observer is on top of a lighthouse. How far from the foot of the lighthouse is the horizon that the observer can see?
Use trigonometry to determine whether solar eclipses on earth can be perfect.