PPOZIOMO
1.
[tex]P = \frac{6\cdot6}{2}-2\cdot 2 = 18-4 = 14\\\\P = 14 \ cm^{2} = 0,14 \ dm^{2}[/tex]
2.
[tex]P = 6\cdot6 - 2\cdot2\cdot2 - 4\cdot2 = 36-8-8 = 20\\\\P = 20 \ cm^{2} = 0,2 \ dm^{2}[/tex]
3.
[tex]P = 6\cdot6 - 1\cdot1 - \frac{1}{2}\cdot3\cdot4 = 36 -1-6 = 29\\\\P = 29 \ cm^{2} = 0,29 \ dm^{2}[/tex]
4.
[tex]P = 4\cdot6 - \frac{4+2}{2}\cdot2 = 24 - 6 = 18\\\\P = 18 \ cm^{2} = 0,18 \ dm^{2}[/tex]
