Find the Distance Between 2 Points

Question 1:

A(-6,1) and B(-10,0)
4.12

Question 2:

C(-8,-1) and D(-2,2)
6.71

Question 3:

E(-1,7) and F(-8,1)
9.22

Question 4:

G(-8,9) and H(8,10)
16

Question 5:

I(-1,-7) and J(3,9)
16.5

Question 6:

K(1,4) and L(1,1)
3