A cone-shaped pile of gravel has a diameter of 30 m and a height of 9.1 m.
Which estimate best approximates the volume of the pile of gravel?
A. 2120 m³
B. 2600 m³
C. 6360 m³
D. 8480 m³
\(V=\dfrac{\pi r^2 h}{3}\\ h=9.1m\\ r = \dfrac{30}{2}=15m\)
you can plug and chug the numbers
+1982 
