Step-by-step explanation:
length can be find out by using the formula
[tex] |AB| = sqrt{(x1-x2)^2+(y1-y2)} \\ [/tex]
now put values
[tex] \sqrt{(2-2)^2+(0-6)^2} \\ [/tex]
[tex] \sqrt{0+(-6)^2} \\ [/tex]
[tex] \sqrt{36 } \\ [/tex]
[tex]6[/tex]
similarly
[tex] |CD| = \sqrt{(12-0)^2+(-10+6)^2} \\ [/tex]
[tex] \sqrt{144+16} \\ [/tex]
[tex] \sqrt{160} \\ [/tex]
[tex]4 \sqrt{10} \\ [/tex]
and finally
[tex] |EF| = \sqrt{(-3-6)^2+(2-2)^2} \\ [/tex]
[tex] \sqrt{81} \\ [/tex]
[tex]9 \\ [/tex]
i hope u will understand
