Respuesta :

AL2006
PR can't be 13. If it were, then the other two couldn't reach from one end of it to the other end.

Answer:

The answer is 13!

Step-by-step explanation:

Triangle Inequality Theorem: The sum of the lengths of any two sides of a triangle must be greater than the length of the third side. 7.2 + 5.2 is not greater than 13.