Using the pythagorean theorem, calculate the length of the missing sides (c1, c2, c3)​

the answer is 12

\begin{gathered} {13}^{2} = {5}^{2} + {b}^{2} \\ {b}^{2} = {13}^{2} - {5}^{2} \\ b {}^{2} = 169 - 25 = 144 \end{gathered}

13

2

=5

2

+b

2

b

2

=13

2

−5

2

b

2

=169−25=144

b = \sqrt{144} = 12b=

144

=12