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I need help with this answer can someone help ASAP

I need help with this answer can someone help ASAP-example-1
User Alechill
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Check the picture below.

so the horizontal lines are 4 and 12, and then we have a couple of slanted ones, say with a length of "c" each


\begin{array}{llll} \textit{using the pythagorean theorem} \\\\ c^2=a^2+o^2\implies c=√(a^2 + o^2) \end{array} \qquad \begin{cases} c=hypotenuse\\ a=\stackrel{adjacent}{4}\\ o=\stackrel{opposite}{3} \end{cases} \\\\\\ c=√( 4^2 + 3^2)\implies c=√( 16 + 9 ) \implies c=√( 25 )\implies c=5 \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{\LARGE Perimeter}}{4+12+5+5}\implies \text{\LARGE 26}

I need help with this answer can someone help ASAP-example-1
User Fogbit
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