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Jadi keliling = 2(5x+1) + 2.3x = 16x + 2
b) Kelilingnya dicari dg menjumlahkan semua sisi = 3y + 2x + 2y+4 + 4x+1 = 6x + 5y + 5
b). Kll = 2x + 2y + 4 + 4x + 1 + 3y = 6x + 5y + 5