The radius of a circle is 2 inches. When the radius is doubled, by how many square inches is the area increased? Express your answer in terms of $\pi$.

Guest Apr 6, 2020

#1**0 **

If the radius is 2 inches long, the area is 4pi square inches. Doubling the radius to 4, the area of that would be 16pi square inches. 16pi-4pi=

**12pi square inches.'**

MooMooooMooM Apr 6, 2020