6

8

4

2

5

5 $\sqrt{2}$

2 $\sqrt{5}$

10

8

2 $\sqrt{7}$

10

6

$d\ =\ \sqrt{\left(y_{1\ }-\ y_2\right)^2\ -\left(x_{2\ }-\ x_1\right)^2}\$

$d\ =\ \sqrt{\left(x_{2\ }-\ x_1\right)^2\ +\ \left(y_{2_{\ }}-\ y_1\ \right)^2}$

$d\ =\ \sqrt{\left(y_{1\ }-\ y_2\right)^2\ -\ \left(x_{1\ }-\ x_2\right)^2}$

d = $\sqrt{\left(x\right)^2-\ \left(y\right)^2}$

$\sqrt{\left(-2-3\right)^2\ +\ \left(-1-1\right)^2}$

$\sqrt{\left(1-3\right)^2\ +\ \left(-1-2\right)^2}$

$\sqrt{\left(-2-3\right)^2\ -\ \left(-1-1\right)^2}$

$\sqrt{\left(-2-3\right)^2\ -\ \left(-1-1\right)^2}$