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3:4 x (22:7 x 14)
= 3:4 x 44
= 33 cm
Kell daerah yg diarsir:
33 + (14 - 7) + (14 - 7)
= 33 + 7 + 7
= 47 cm
Maaf kalau salah.
keliling = 11+11+11+7+7=47 cm