Odpowiedź:
1.
[tex]15^{2}[/tex] + [tex]15^{2}[/tex]= 225 + 225 = [tex]\sqrt[]{450}[/tex] = 21,21
2.
[tex]a^{2}[/tex] + [tex]b^{2}[/tex] = [tex]c^{2}[/tex]
[tex]a^{2}[/tex] + [tex]a^{2}[/tex] = [tex]c^{2}[/tex]
[tex]2a^{2} =c^{2}[/tex]
[tex]a^{2} = \frac{c^{2}}{2}[/tex]
[tex]a^{2} = \frac{17^{2} }{2}[/tex]
[tex]a^{2} = 144,5[/tex]
a = [tex]\sqrt{144,5}[/tex]
[tex]a = 12,02[/tex]
