Respuesta :

a^2 + b^2 = c^2

4 ^2 + b^2 = 19^2

= 16 + b^2 = 361

= b^2 = 345

= b = 18.6

Answer:

a^2 + b^2 = c^2

4 ^2 + b^2 = 19^2

= 16 + b^2 = 361

= b^2 = 345

= b = 18.6

Step-by-step explanation:

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