Zastosujmy twierdzenie Pitagorasa
a)
[tex] {8}^{2} + {15}^{2} = {x}^{2} \\ 64 + 225 = {x}^{2} \\ 289 = {x}^{2} \\ x = \sqrt{289} = 17[/tex]
b)
[tex] {y}^{2} + {5}^{2} = {12}^{2} \\ {y}^{2} + 25 = 144 \\ {y}^{2} = 119 \\ y = \sqrt{119} [/tex]
c)
[tex]14 - 9 = 5[/tex]
Czyli
[tex] {5}^{2} + {7}^{2} = {z}^{2} \\ 25 + 49 = {z}^{2} \\ 74 = {z}^{2} \\ z = \sqrt{74} [/tex]
