find the distance of the line segment joining the two points: 21

Given two points (x1, y1) and (x2,y2) the distance d between the points is given by:
[tex]d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}[/tex]In this case,
x1 = √2, y1 = 0, x2 = 0, and y2 = -√2
Therefore, d is given by:
[tex]\begin{gathered} d=\sqrt{(\sqrt{2}-0)^2+(0-(-\sqrt{2}))^2} \\ d=\sqrt{2+2}=\sqrt{4}=2 \end{gathered}[/tex]Therefore, the required distance is 2.