Respuesta :

yathicha

Answer: B.16

Step-by-step explanation:

using pythagoras

[tex]20^{2} = x^{2} + 12^{2}[/tex]

400 = [tex]x^{2}[/tex] + 144

[tex]x^{2}[/tex] = 256

x = 16 and -16

please give me a brainliest answer.

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