Answer:
Option B
Step-by-step explanation:
Use the Pythagorean Theorem.
[tex]a^2+b^2=c^2[/tex]
For Option A:
[tex]4^2+5^2=9^2\\\\16+25=81\\\\\boxed{41\neq 81}[/tex]
It is not a right triangle.
For Option B:
[tex]5^2+12^2=13^2\\\\25+144=169\\\\\boxed{169=169}[/tex]
Option B's side lengths can be used as a right triangle.
Hope this helps.
