Answer:
15
Step-by-step explanation:
The formula of a distance between two points:
[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
We have the points (2, 0) and (11, 12).
Substitute:
[tex]d=\sqrt{(12-0)^2+(11-2)^2}=\sqrt{12^2+9^2}=\sqrt{144+81}=\sqrt{225}=15[/tex]
