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karena
lebar 1 : lebar 2= 2:3
panjang 1 : panjang 2 = 6:9 = 2:3
jadi sebangun
gambar 1
p=6 l=4
gambar 2
p=4 l=2 beda masing masing angka 2 (pas) kl yg C 6&2 beda 4
8&4 bada dua tidak sm