Find the length of the line segment joining

a. (2, 0) and (5, 0)

b. (-7, 4) and (- 7, 8)

c. (2, 1) and (8, 9)

d. (-3, 1) and (2, 13)

e. (5, - 2) and (2, -6)

f. (4, 4) and (- 20, - 3)

g. (6, - 5) and (1, 2)

h. (- 3, - 2) and (- 1, - 5)

i. (- 7, 7) and (5, - 5).