Odpowiedź:
[tex]a=\frac{8}{11}m\\b = 2 \frac{6}{7} dm = \frac{20}{7} dm = \frac{200}{7} m\\ \\P=\frac{8}{11}+\frac{8}{11}+\frac{200}{7}+\frac{200}{7} = \frac{56}{77} + \frac{56}{77} + \frac{2200}{77}+ \frac{2200}{77} = \frac{4512}{77}= 58,6 m^{2}[/tex]
