△XYZ is given with X(2, 0), Y(0, −2), and Z(−1, 1). Which of the following can be used to prove that △XYZ is isosceles? −(−1))2+(−2−1)2−−−−−−−−−−−−−−−−−−−√ and (−1−0)2+(1−(−2))2−−−−−−−−−−−−−−−−−− −√

(2−(−1))2+(0−1)2−−−−−−−−−−−−−−−−−−√ and (0−(−1))2+(−2−1)2−−−−−−−−−−−−−−−−−− −√

(2−0)2+(0−(−2))2−−−−−−−−−−−−−−−−−−√ and (2−(−1))2+(0−1)2−−−−−−−−−−−−−−−−−−√

(0−(−1))2+(−2−1)2−−−−−−−−−−−−−−−−−− −√ and (2−0)2+(0−(−2))2−−−−−−−−−−−−−−−−−−√