Answer:
V = 45,235 ft³
Step-by-step explanation:
The general formula for the volume of a cone:
V = [tex]\frac{1}{3}[/tex]πr³, where r = radius
Given the circumference of 309 feet, you can solve to find the radius of the cone:
C = 2πr or 309 = 2πr
Divide by 2π: 309/2π = 2πr/2π
Solve: r ≈ 49
V = [tex]\frac{\pi r^{2}h}{3}=\frac{\pi 49^{2}}{3}=45,235[/tex]
