Question

aria unei bile metalice este de 100пc cm patrati aflati volumul bilei.

Answer 1

$\it \mathcal{A}_{sfera} = 4\pi R^2=100\pi \Rightarrow R^2=\dfrac{100\pi}{4\pi} \Rightarrow R^2=100 \Rightarrow R = 10 cm \\ \\ \\ \Mathcal{V}_{sfera} = \dfrac{4\pi R^3}{3}$