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perimeter of a triangle

The perimeter of a triangle can be found with the formula $P = a + b + c$ , where $a$ , $b$ , and $c$ represent the lengths of the 3 sides of the triangle.

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$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$