Zadanie 2
P=4\pi R^2
V=\frac{4}{3}\pi R^3 \ |:\frac{4\pi}{3}
V\cdot \frac{3}{4\pi}=R^3
R=\sqrt[3]{\frac{3V}{4\pi}} promień kuli
{P=4\pi R^2=4\p \cdot (\sqrt[3]{\frac{3V}{4\pi}})^2=4\pi \cdot\sqrt[3]{\frac{9V}{(4\pi)^2}}=\sqrt[3]{\frac{(4\pi)^3\cdot 9V^2}{(4\pi )^2}}=\sqrt[3]{4\pi \cdot 9V^2}=\sqrt[3]{36\pi V^2}}