Answer:
A, due to the fact that the railroad disrupted eco systems, and also changed the landscape, it killed buffalo native americans were killing for food, and other changes which proved to be devastating.
Explanation:
The inequality which best describe the third side of the triangle which has two sides of unit 20 and 31 is 20>b>31.
<h3>What is triangle inequality theorem?</h3>
Triangle inequality theorem of a triangle says that the sum of the two sides of a triangle is always greater than the third side.
Suppose a, b and c are the three sides of a triangle. Thus, according to this theorem,
(a+b)>c
(b+c)>a
(c+a)>b
The two sides of the triangle are 20 and 31. From the inequality theorem, the another side b can be represented as,
(20+31)>b
Thus, the length of b can be between 20 and 31.
20>b>31
Hence, the inequality which best describe the third side of the triangle which has two sides of unit 20 and 31 is 20>b>31 .
Learn more about the triangle inequality theorem here;
brainly.com/question/309896
#SPJ2
i think for the Union POW (prisoners of war) that were captured during the civil war. it was a place for prisoners to pass the time by making trinkets, playing sports and games, and even doing plays.
