tolong bntu nomor 32 ya mkshh

D = 35cm
t = 40cm
1cm³ = 0,2 gram

Luas permukaan = 1/4 x π D²
=> 1/4 x 22/7 x 35 x 35
=> 1/4 x 110 x 35 = 962,5cm²

Volume tabung = Luas alas x t
=> 962,5cm² x 40cm² = 38.500cm³

38.500cm³ = 7.700 gram = 7,7kg
jawaban C.

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