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The first side of a triangle measures 5 in. Less than the second side, the third side is 3 in.more than the first side,and the perimeter is 17 in. How long is the third side?

 Apr 11, 2020
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s1= s2-5

s3= 3 + (s2-5) = s2-2

 

s2-5     +   s2      +     s2 - 2    =   3 s2-7       = 17      

                                                       s2 = 8

                                                       s1= 3

                                                        s3 = 6   in

 Apr 11, 2020

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