Mohon bantuannya orang orang pintar

jadi jawabannya 2. menjadi 2 kali volume semula

[tex]\frac{V_{2}}{V_{1}}=\frac{\frac{1}{3}\pi r_{2}^{2}t_{2}}{\frac{1}{3}\pi r_{1}^{2}t_{1}}\\\frac{V_{2}}{V_{1}}=\frac{(2r_{1})^{2}\times \frac{t_{1}}{2}}{r_{1}^{2}t_{1}}\\\frac{V_{2}}{V_{1}}=\frac{2r_{1}^{2}t_{1}}{r_{1}^{2}t_{1}}\\\frac{V_{2}}{V_{1}}=2\\V_{2}=2V_{1}[/tex]

volumenya menjadi 2x volume semula