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Lpermukaan = luas alas + (keliling alasxtinggi)
= (50 x 50) + (200x300)
= 2500 + 60000
= 62500 cm2 = 6.25 m2
cat yang dibutuhkan = 6,25 kaleng
semoga benar,,,,jika membantu jadikan yang terbaik yaa
= (4 x 0,4 x 3) + (0,5 x 0.5)
= 6.25
car dibtukan = 6.25/1
= 6.25 atau 7 cat