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volume bola 1 : volume bola 2
r1³:r2³
7×7×7 : 10,5×10,5×10,5
2×2×2 : 3×3×3
8:27
69. volume bola=
volume tabung= πr²t
volume bola : volume tabung
4/3πr³ : πr²t ---> Note: tinggi tabung= diameter bola = 2r
4/3r³:r²2r
4/3r³:2r³
: 2 | ×3
4:6
2:3