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Please help me find the perimeter of this triangle please
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Please help me find the perimeter of this triangle please

Please help me find the perimeter of this triangle please-example-1
User Arpit Ratan
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1 Answer

6 votes

\bf \textit{distance between 2 points}\\ \quad \\ \begin{array}{lllll} &x_1&y_1&x_2&y_2\\ % (a,b) C&({{ 1}}\quad ,&{{ 9}})\quad % (c,d) B&({{ 7}}\quad ,&{{ 1}}) \end{array}\qquad % distance value d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2} \\\\\\ CB=√((7-1)^2+(1-9)^2)\implies CB=√(6^2+(-8)^2) \\\\\\ CB=√(36+64)\implies CB=√(100)\implies CB=10

add the sides with 8 and 6 to it, and that's the perimeter.
User Dko
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