Respuesta :

musiclover10045

x^2 +x^2 = C^2

x^2 +x^2 = 15^2

x^2 + x^2 = 225

225/2 = 112.5 = x^2

sqrt(112.5) = 10.6066


 round answer as needed


 note the answer can also be written as 15sqrt(2)/2

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