81.56+n-2.55=0
81.56+n=2.55
n=2.55-81.56
n=-79.01
To find the volume of a cone, you use the formula

.
Radius squared would be 36 in our case and 36 times 3.14 is 113.04. 6 thirds is also two, so multiply that by two and you would get 113.04 x 2 = 226.08. So, your answer would be 226.08 cubic meters of dirt.
The other name for angle 2 is ∠DBC
The correct option is (D)
<h3>What is Angle?</h3>
A figure which is formed by two rays or lines that shares a common endpoint is called an angle.
We know that while naming the angle we have to consider the point where the angle is made should be at center.
Hence, the angle 2 can also be written as ∠DCB.
Learn more about angle here:
brainly.com/question/13954458
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Answer:
About 57238.562767982 meters
Step-by-step explanation:
I believe that 21 is d 27 over 17
I believe that 22 is d because 16 divided by 3.20 is 5
sorry if I am wrong
I hope this helps you