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Alas = lingkaran
Luas alas = luas lingkaran = phi r^2
Diameter= 2 r
R= 8/2 = 4
Luas alas = 3,14*4*4 = 50,24 m^2
Dah luas alas dapet, tinggi dapet. Tinggal masukkin ke rumus
V = 1/3*50,24*3 = 50,24 m^3