Tolong kak soal nya besok dikumpulin pliss.pake cara nya

Tolong kak soal nya besok dikumpulin pliss.pake cara nya

Jawaban:

$k = 2 times (p + l) \ 26 = 2 times ((2x + 5) + (4x - 10)) \ 26 = 2 times (2x + 4x + 5 - 10) \ 26 = 2 times (6x - 5) \ 26 = (2 times 6x) + (2 times ( - 5)) \ 26 = 12x + ( - 10) \ 26 = 12x - 10 \ + 10 + 26 = 12x \ 26 + 10 = 12x \ 36 = 12x \ 12x = 36 \ x = 36 div 12 \ x = 3 \ maka \ p = 2x + 5 \ p = 2(3) + 5 \ p = 6 + 5 \ p = 11 \ l = 4x - 10 \ l = 4(3) - 10 \ l = 12 - 10 \ l = 2 \ jadi \ panjang = 11cm \ lebar = 2cm$