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Jadi kolamnya kan mau dibikinlebar = 12 m
panjang = 25 m
jadi panjang besi yg diperluin sama kayak kelilingnya, soalnya kan dipake ke sekeliling
panjang teralis
= (2 x panjang) +( 2 x lebar)
= (2x25) + (2x12)
= 50 + 24
= 74 meter
Bab Bangun Datar Sederhana
Panjang teralis besi
= keliling persegi panjang
= 2 x (p + l)
= 2 x (25 + 12)
= 2 x 37
= 74 m