
A.
√5 
B.
2√3 
C.
√20 
D.
√50
Correct Answer: Option A
Explanation
L(begin{pmatrix} x_1 & y_1 \ 1 & 6 end{pmatrix}) m L(begin{pmatrix} x_2 & y_2 \ 3 & 5 end{pmatrix})
D = (sqrt{(x_2 – x_1)^2 + (y_2 – y_1)^2})
D = (sqrt{(3 – (1)^2 + (5 (6)^2})
D = (sqrt{(3 + 1)^2 + (5 + 6)^2})
D = (sqrt{(2)^2 + 1^2})
D = (sqrt{4 + 1})
D = (sqrt{5})