Posted by Jay on Friday, March 28, 2014 at 4:41pm.
A pile of gravel is conical in shape. If the diameter is approximately 6.8m and the height is 2.8m, what is the volume of gravel in the pile?

Math  Kuai, Friday, March 28, 2014 at 5:19pm
v = (1/3)pi(r^2)h
h = 2.8m
r =d/2 = 6.8/2 = 3.4m
v = (1/3)pi(3.4)^2(2.8)