Find the Distance Between 2 Points

Question 1:

A(6,-4) and B(5,-4)
1

Question 2:

C(-10,7) and D(-10,3)
4

Question 3:

E(1,8) and F(-4,8)
5

Question 4:

G(-8,-9) and H(1,6)
17.5

Question 5:

I(-1,-5) and J(2,1)
6.71

Question 6:

K(-10,-5) and L(-7,4)
9.49