Answer:
r = 2.14 miles
Explanation:
Area of a circle = πr²
Where,
π, pi = 3.14
r, radius = ?
Area = 14.4 square miles
Area of a circle = πr²
14.4 = 3.14 * r²
14.4 = 3.14r²
r² = 14.4/3.14
r² = 4.5859872611464
r = √4.5859872611464
r = 2.1414918307447
Approximately to the nearest hundredth of a mile
r = 2.14 miles