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3,14 × 10 × 10 × 28 = 314 x 28 = 8792 cm3
v tabung 2 (r=20)
la x t = 3.14 x 20 x 20 x 28 = 35168 cm3
perubahan volume : 35168-8792=26376 cm3
t = 28 cm
rumus :
jawaban :
= 3,14×20×20×28
=314×2×2×28
=35.168