Find the volume of a sphere with a radius of 1.8 yards. Leave your answer in terms of pi. Round your answer to the nearest hundredth, if necessary.
A: 7.2pi
B: 23.34pi
C: 7.78pi
D: 24.43pi
The formula for the volume of a sphere is V = (4/3)πr^3, where r is the radius of the sphere.
Plugging in the given radius of 1.8 yards into the formula:
V = (4/3)π(1.8)^3
V = (4/3)π(5.832)
V = (19.44)π
Rounding to the nearest hundredth:
V ≈ 19.44π
Therefore, the answer is C: 7.78π.