Relax

Respuesta :

fnej

Answer:

11.6

Step-by-step explanation:

42/2 = 21

Formula to use: a² + b² = c²

21² + b² = 24²

441 + b² = 576

b² = 135

[tex]\sqrt{b^2} =\sqrt{135}[/tex]

b = 11.62