Answer:
[tex]BC=15\ units[/tex]
Step-by-step explanation:
see the attached figure to better understand the problem
In the right triangle ABC
Applying the Pythagorean Theorem
[tex]AB^2=AC^2+BC^2[/tex]
substitute the given values
[tex]17^2=8^2+BC^2[/tex]
solve for BC
[tex]BC^2=17^2-8^2[/tex]
[tex]BC^2=225[/tex]
[tex]BC=15\ units[/tex]
