Answer :

use pythagorean theorem

find legn height and leg width

from -1 to 6, the distance is 7
from -2 to 2, the distance is 4 so

4^2+7^2=c^2
solve for c
16+49=c^2
65=c^2
square root both sides
√65=c

the answer is √65


(the basic equation is [tex]c= \sqrt{(y1-y2)^2+(x1-x2)^2} [/tex] x1-x2 means the first x minus the second x)