Assuming your looking for volume.
The following formula is used for calculating the volume (V) of a cone.
- where r is the radius and h, the height.
- Substitute r = 3 and h = 5 into the formula.
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≈ 
Hello!
Let's think of this large triangle as a whole. If we add up the angles, we have 115°. The adjacent side to this angle is 9 feet. Let's try finding the opposite side. The tangent deals with these two.
tan115≈2.14
Therefore, x/9=2.14
We multiply both sides by 9 to find x.
x=19.26
Now let's find the length BC and subtract it from 19.26 to find our length. As we will deal with opposite and adjacent sides, we will find the tangent.
tan45=1
This means x/9=1
Therefore, BC=9
Now we can subtract from 19.26
19.26-9=10.26
Therefore, this length is 10.26 feet
I hope this helps!
You divide the top fraction and the bottom fraction and that will get you your decimal
I believe the answer is between C and D
