Respuesta :

Answer:

60

Step-by-step explanation:

5 x 12

60


The ladder is a hypotenuse of a triangle with base of length 5 and vertical side 12, and it is right-angled. Use the Pythagorean theorem.

[tex]12^2+5^2=x^2\\169=x^2\\\sqrt{169}=13=x\\[/tex]

x, the ladder height is 13 units.