Question

What is the area of the circle of radius 9

Answer 1

I hope I'm reading this right but the circle has a radius of 9?

a = π r²

81π or 254.34

Answer 2

The equation for the area of a circle is:
`\pi r^2` . Insert 9 as your radius (r) into the equation and solve:
\pi 9^2 = 254.469