October 2018 2 52 Report
Diketahui panjang dan lebar persegi panjang secara berturut-turut adalah (2x + 15)cm dan (3x + 5)cm.jika keliling persegi panjang 80 cm,tentukan :
a.nilai x
b.ukuran panjang dan lebar,serta
c.luasnya !
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