What is important in a two column proof

In a two column proof, we must know the following:

1. The statements, most of which are given in the proof

2. The reason for each statement

3. Keeping a logical order of the statements

3. Keeping a logical order of the reasons for each statement

4. Manipulation of statements as needed in accordance with the reasons provided

Here is the Distance Formula:     √(x2 - x1)2 + (y2 - y1)2 So we take the first two coordinates:     (-2,1) and  (-2,4)        we will label them like so  (x1,y1) and (x2,y2)     (x1,y1) and (x2,y2)      the first coordinates are are starting point and                                       the second coordinates are the end point.                                      Substitute them into the Distance Formula        √(-2 - -2)2 + (4 - 1)2  =  √(0)  +(3)2    =   √9 = 3So the distance between the coordinates (-2,1) and (-2,4) is 3.Now it is your turn to do the remaining 4 points, calculate the distance between each point, then add up each of the distances, which will give you the perimeter.  If you can't do it, ask me if you need any more help!!!  IF YOU NEED THE PERIMETER HERE IT IS >  24