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Verified answer
Kelas 8 MatematikaBab Bangun Ruang
rusuk kubus = d = 21 cm
r = d/2
r = 21/2
r = 10,5 cm
Volume = (4/3) x π x r x r x r
Volume = (4/3) x 22/7 x 10,5 x 10,5 x 10,5
Volume = 4.851 cm^3
✩✩ B ✩✩