Y= 18 because vertical angles are congruent.
The next value would be 48. The values keep increasing by odd numbers. Like the first one is 3 then it goes to 5.
3, 5, 7, 9, 11, 13.....
For this case what we must do is use the law of cosines.
We then have the following equation:

Where,
a, b: sides of the triangle
x: angle between sides a and b.
Substituting values we have:

Clearing the value of c we have:
Answer:
An expression that is equivalent to how many feet the oak trees are from each other is:
Height = 19.75
diam = 19.75*1.4 =
<span>
<span>
<span>
27.65
radius = </span></span></span>
<span>
<span>
<span>
13.825
</span>
</span>
</span>
Volume = PI*19.75 * (13.825*13.825)
<span><span><span>Volume = PI*3,774.83
</span>
</span>
</span>
<span><span><span><span>Volume = </span>11,858.98
</span>
</span>
</span>
A) 13.25
B) 164.64
C) 57.1
D) 145173.954289 or <span>381.017</span><span><span>2
A good calculator website is </span></span>https://www.cymath.com/