Respuesta :

chanellekabi

Step-by-step explanation:

x^2 + y^2 = r^2

12^2 + 16^2 = r^2

144 + 256 = r^2

400 = r ^2

[tex] \sqrt{400} = \sqrt{ {r}^{2} } [/tex]

20 = therefore the hypotenuse side is 20cm

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