Intro Question: How tall is the Bennington Monument
We measure the angle we made from us to the monument--it's 15 degrees. On flat land, even with the monument, we walk 75 towards the monument, then measure the elevation again. Angle of elevation is now 16 degrees.
How tall is the monument?
Concepts: correct use of the Law of Sines, Law of Cosines.
Height of a windblown tree will allow us to prove the law of sines
Around a lake will allow the law of cosines
Ambiguous Case as well.