1.
Twierdzenie Pitagorasa:
a² + b² = c²
gdzie:
a,b - przyprostokątne
c - przeciwprostokątna
[tex]\boxed{Odp. B. \ k^{2}+g^{2} = h^{2}}[/tex]
2.
[tex]d = a\sqrt{2}\\\\a = 7 \ cm\\\\\boxed{Odp. \ C. \ 7\sqrt{2} \ cm}[/tex]
3.
[tex]A = (1,-1) \ \ \rightarrow \ \ x_{A} = 1, \ \ y_{A} = -1\\B = (-3,2) \ \ \rightarrow \ \ x_{B} = -3, \ \ y_{B} = 2\\\\|AB| = \sqrt{(x_{B}-x_{A})^{2} + (y_{B}-y_{A})^{2}}\\\\\\|AB| = \sqrt{(-3-1)^{2}+(2-(-1))^{2}} = \sqrt{(-4)^{2}+3^{2}} = \sqrt{16+9} = \sqrt{25} = 5\\\\\boxed{Odp. \ C. \ 5}[/tex]
