Answer:
5
Step-by-step explanation:
if the point A is (1;-3), the point B is (5;-6), then
1. the formula of the required length is:
[tex]d=\sqrt{(X_A-X_B)^2+(Y_A-Y_B)^2};[/tex]
2, after the substitution of the coordinates of the points A and B into the formula of the required diameter:
[tex]d=\sqrt{(1-5)^2+(-3+6)^2}=\sqrt{16+9}=5.[/tex]
