Related Rates Circle Problem

Topic:
Calculus
This animation shows how we can relate rates of two quantities just by knowing a relationship between the two quantities. For this animation, the radius is growing at a constant rate of 2 in/min. See if you can find how fast the area is increasing when the radius is 4 inches. There are plots of the relationship between time and area as well as the relationship between radius and area.
Click play to run