[tex]P_{1} =7\cdot 9 = 63~[j^{2} ]\\\\P_{2} =11\cdot 6 = 66~[j^{2} ]\\\\P_{3} =3\cdot 4 = 12~[j^{2} ]\\\\P_{figury~~zacienionej} =P_{1} +P_{2} -P_{3} \\\\P_{figury~~zacienionej} =63~[j^{2} ]+66~[j^{2} ]-12~[j^{2} ]\\\\P_{figury~~zacienionej} =117~[j^{2} ][/tex]
