[tex] \tt SR = \sqrt{(x, - x_2) {}^{2} + (y, - y_2 )} [/tex]
S (1, 5) ㅤㅤㅤㅤㅤR (1, -2)
[tex] \tt SR = \sqrt{(1 - 1) {}^{2} + [5-(-2)]^2} [/tex]
[tex] \tt = \sqrt{5-(-2)]^2} [/tex]
[tex] \tt = 5 - ( - 2)[/tex]
|SR| = |5-(-2)| = |-2-5|
ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
Ans: B and C
