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Question-70417




Question Number 70417 by aliesam last updated on 04/Oct/19
Answered by MJS last updated on 04/Oct/19
just use formulas  sphere: V=((4π)/3)r^3 ; S=4πr^2   cylinder: V=πr^2 h       S=2×circle+lateral=2πr^2 +2πrh
$$\mathrm{just}\:\mathrm{use}\:\mathrm{formulas} \\ $$$$\mathrm{sphere}:\:{V}=\frac{\mathrm{4}\pi}{\mathrm{3}}{r}^{\mathrm{3}} ;\:{S}=\mathrm{4}\pi{r}^{\mathrm{2}} \\ $$$$\mathrm{cylinder}:\:{V}=\pi{r}^{\mathrm{2}} {h} \\ $$$$\:\:\:\:\:{S}=\mathrm{2}×\mathrm{circle}+\mathrm{lateral}=\mathrm{2}\pi{r}^{\mathrm{2}} +\mathrm{2}\pi{rh} \\ $$

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