Find the distance between the given endpoints (1, 1) and (S, 3) point) = sqrt (3)^ 2 +(2)^ 2; = sqrt (2)^ 2 +(d)^ 2; = sqrt (2)^ 2 -(4)^ 2; = sqrt (2)+(4)

The distance between the points (1, 1) and (5, 3) is calculated using the distance formula:

d = sqrt((5-1)^2 + (3-1)^2)
d = sqrt(4^2 + 2^2)
d = sqrt(16 + 4)
d = sqrt(20)
d = 2sqrt(5)

Therefore, the distance between the given endpoints is 2sqrt(5) units.