Math, asked by 28Suhanipatel, 5 months ago

The sides of a triangle are 2x + 3, 3x -1 and x + 7. What is it's perimeter​

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Answered by ITZBFF
23

 \boxed{ \mathsf \blue{perimeter \:  =  \: sum \: of \: all \: sides \: of \: a \: polygon}} \\  \\  \mathsf \red{Given \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:} \\  \\  \mathsf{sides \: of \: triangle \: are \:  : (2x + 3), \: (3x - 1), \: (x + 7)} \\  \\  \mathsf \red{add \: all \: the \: sides \: to \: get \:  \: perimeter \: of \: triangle \:  \:  \:  \:  \:  \:  \:  \:  \:  \: } \\  \\  \mathsf{2x + 3 + 3x - 1 + x + 7} \\  \\    \mathsf{ =  \: 6x + 9}\\  \\  \boxed{\mathsf{ perimeter \: =  \: 6x + 9}}

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