Respuesta :

Answer:

        15 units

Step-by-step explanation:

[tex]d_{FH}=\sqrt{(x_H-x_F)^2+(y_H-y_F)^2}\\\\F(0,0)\quad \implies\quad x_F=0\,,\ \ y_F=0\\\\H(9,12)\quad \implies\quad x_H=9\,,\ \ y_H=12\\\\d_{FH}=\sqrt{(9-0)^2+(12-0)^2}=\sqrt{81+144}=\sqrt{225}=15[/tex]