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3 × 4 Cm = 12 Cm
12 × 16 Cm = 192 Cm
Perbandingan Sebelum & Sesudah = 12 Cm : 192 Cm
= 1 : 16
3 x 4 : 12 x 16 (bagi kedua ruas dg (3 x 4)
= 1 : 16
jawaban D
dg cara lain, cari luasnya
3x4 : 12x16
= 12 : 198 (bagi kedua ruas dg 12)
= 1 : 16