[tex]Zadanie\\\\A=(-2,5)\\C=(4,-3)\\\\\mid AC\mid=\sqrt{(x_C-x_A)^{2}+(y_C-y_A)^{2}}\\\\ \mid AC\mid=\sqrt{[4-(-2)]^{2}+(-3-5)^{2} }=\sqrt{6^{2}+(-8)^{2} }=\sqrt{36+64}= \sqrt{100}=10\\\\\mid AC\mid=d\\\\P=\frac{d^{2} }{2}\\\\P= \frac{10^{2}}{2}= \frac{100}{2}=50\\\\Odp.\ A[/tex]
