[tex] {a}^{2} + {b}^{2} = {c}^{2} [/tex]
[tex] {3}^{2} + {b}^{2} = {17}^{2} [/tex]
[tex]9 + {b}^{2} = 289[/tex]
[tex] - 9 \: \: \: \: \ \: \: \: \: - 9[/tex]
[tex] {b}^{2} = \sqrt{280} [/tex]
[tex]b = 16.7[/tex]
