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Answer :

Answer:

C.

Step-by-step explanation:

use the pythogorean theorem a^2 + b^2 = c^2

Answer:

[tex]3cm,5cm,9cm[/tex]

Step-by-step explanation:

[tex] {c}^{2} = {a}^{2} + {b}^{2} [/tex]

[tex]c = \sqrt{ {a}^{2} + {b}^{2} } [/tex]

[tex]9 { = }^{?} \sqrt{ {3}^{2} + {5}^{2} } [/tex]

[tex]9 { = }^{?} \sqrt{9 + 25} [/tex]

[tex]9 { = }^{?} \sqrt{34} [/tex]

[tex]9 \neq 5.8309518948453[/tex]

[tex]3cm,5cm,9cm[/tex]