БАЦ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Question

БАЦ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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Answer 1

Р=2(а+в) - формула периметра
в=Р/2-а
а=13    Р=38
в=38/2-13=19-13=6
в=6

Answer 2

P=2{a+b) 38=2(13+b) 13+b=38/2 13+b=19 b=19-13 b=6