Question

A stockpile of dirt is being stored at a construction site. The dirt is roughly shaped like a cone with a height of 45ft and a diameter of 60ft. What is the estimated volume of the dirt pile?
A. 42,390
B. 127,110
C. 1,400
D. 380,000

Answer 1

Answer:

A.

Step-by-step explanation:

The formula for the volume of a cone is $V=\frac{1}{3} h\pi r^2$

Where h is the height and r is the radius.

In this case, h = 45 ft and r = 60 /2 = 30.

$V =\frac{1}{3} *45\pi *30^2\\V = 42411$

The answer closest to this is A: 42,390.

Answer 2

A. 42,390 is the correct answer.
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