we see the points (1,7) and (1,2) they didn't move anywhere to the right or left since the first number didn't change it went 5 units down though (7 to 2 is 5 units)
then the next one look at the ones with same numbers in the same place
(1,7) and (6,7) didn't move up or down but moved 5 units left and right (1 to 6 is 5 units)
(6,7) and (6,2) didn't move left or right but moved down 5 units (7 to 2 is 5)
(6,2) and (1,2) didn't go up or down but went 5 units down (6 to 1 is 5)
so we have that the points are 5 away from each other (the ones that are stright up and left or righ tof each other (not diagonal))
therefor the legnth of each side is 5 units
area=5^2=25
anothe way is square has 4 sides equal find 1 side and you found other 3 pick 2 points with same first number or second number and find difference
