Cone B has a diameter of 12 kilometers and a slant height of 10 kilometers. Determine the volume of Cone B.

V = 1/3 x PI x r^2 x sqrt(l^2-r^2)

r = 12/2 = 6
l = 10

1/3 x 3.14 x 6^2 x sqrt(10^2-6^2)

 volume = 301.59 cubic km  (round answer as needed)