Perimeter of a triangle given its vertices
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Contents
Name
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[math]\text{Perimeter }=\overline{AB}+\overline{BC}+\overline{CA}\,[/math] [math]=\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}[/math] [math]+\sqrt{(x_{3}-x_{2})^2+(y_{3}-y_{2})^2}[/math] [math]+\sqrt{(x_{1}-x_{3})^2+(y_{1}-y_{3})^2}\,[/math] |
Usage
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See Also
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