Calculus
Decided to go on a bit further in Chapter 6 (p.444) and cover Rotational Surface Area.
Show that by cutting the label off a water bottle you can show how a Frustum relates to a rotational surface area.
Intro Video
Continue by working problems from book.
Geometry
Trig Modelling Word Problems
Worked Problems
Measuring Mountains: How Trig was used to find the height of Mt. Everest
