Przyda nam się tutaj twierdzenie Pitagorasa
[tex] {a}^{2} + {b}^{2} = {c}^{2} \\ {3}^{2} + {7}^{2} = {x}^{2} \\ {x}^{2} = 58 \\ x = \sqrt{58} \\ {3}^{2} + {y}^{2} = 3 \sqrt{5} ^{2} \\ 9 + {y}^{2} = 3 \sqrt{5} ^{2} \\ 9 + {y}^{2} = 45 \: \: ( - 9 \\ {y}^{2} = 36 \\ y = 6 \\ {5}^{2} + {z}^{2} = {6}^{2} \\ 25 + {z}^{2} = 36 \: \: ( - 25 \\ {z}^{2} = 11 \\ z = \sqrt{11} [/tex]
