Precalc Circle Help Please

Question

The Mayor of Hotlanta is told that zombies are spreading out from the center of a field in the city. The Mayor quickly puts out a signal for Capt. Brave who hovers 40 meters over the center of the field. The densely packed zombies form a circle, and Capt. Brave uses his super senses to calculate that the distance from him to the edge of the zombies is √3044 meters. What is the area of the circle of zombies? (Your answer should be to within the nearest 0.1 m2)

Answer 1

r represents the radius of he circle

r² + 40² = 3044

Determine r, then use it to calculate area.