Odpowiedź:
[tex]pc = pp + pb \\ pp = 4 \times 4 = 16 \\ h \: pb = \\ {x}^{2} = 36 - 16 \\ x = \sqrt{20} = 2 \sqrt{5} \\ pb = 4 \times 4 \times 2 \sqrt{5} \div 2 \\ =4 \times 4 \sqrt{5} = 16 \sqrt{5} \\ pc = 16 + 16 \sqrt{5} [/tex]
