P = a * b
P = [tex]\sqrt[3]{16} * \sqrt[3]{4}[/tex]
P = [tex]\sqrt[3]{16 * 4}[/tex]
P = [tex]\sqrt[3]{64}[/tex]
P = 4
Obw: ⁴[tex]\sqrt[3]{16} * 2 + \sqrt[3]{4} * 2[/tex] = [tex]2\sqrt[3]{2} * 2 + \sqrt[3]{4} * 2 = 4 \sqrt[3]{2} + \sqrt[3]{4} * 2 = 2\sqrt[3]{2} ( 2 + \sqrt[3]{2})[/tex]
≈ 8,21449
