Question

7th grade question easy will fan and medal - http://gyazo.com/99febed290d8407e5d78f051465a9b40

Answer 1

How do you find the area if you know the radius?

Answer 2

To find the area, we use the formula:
\[A = \pi\times r^2\]
\[A=\pi \times 4.5^2\]
\[A = \pi \times 20.25\]
\[A = 20.25\pi \;m^2\]