Respuesta :

9514 1404 393

Answer:

  c = 3√34 ≈ 17.493

Step-by-step explanation:

The Pythagorean theorem tells you ...

  c² = 15² +9²

  c² = 225 +81 = 306

  c = √306

  c = 3√34 ≈ 17.493