Odpowiedź:
[tex]a) {5}^{2} + {12}^{2} = {c}^{2} [/tex]
[tex]5 \times 5 + 12 \times 12 = {c}^{2} [/tex]
[tex]25 + 144 = {c}^{2} [/tex]
[tex] {c}^{2} = 169[/tex]
[tex]c = 13[/tex]
[tex]obw = 12 + 5 + 13 = 17 + 13 = 30[/tex]
[tex]b) {7.5}^{2} + {b}^{2} = {12.5}^{2}[/tex]
[tex]7.5 \times 7.5 + {b}^{2} = 12.5 \times 12.5[/tex]
[tex]56.25 + {b}^{2} = 156.25[/tex]
[tex] {b}^{2} = 156.25 - 56.25[/tex]
[tex] {b}^{2} = 100[/tex]
[tex]b = 10[/tex]
[tex]obw = 7.5 + 12.5 + 10 = 20 + 10 = 30[/tex]
Pozdrawiam.
