Find the length of side a .
Sides:
c = 15
b = 9
a = ?
The answer would be a = 12
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![\begin{gathered} a=\sqrt[]{c^2-b^2} \\ a=\sqrt[]{15^2-9^2} \\ a=\sqrt[]{144} \\ a=12 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/f1x5oe957siberjwa7r4alknoxzvudrfb9.png)