[tex]a^2+b^2 =c^2[/tex]
a, b - przyprostokątne; c - przeciwprostokątna
x - szukany odcinek
a) [tex]4^2+ b^2 = 7^2 \\16 +b^2 = 49\\b^2 = 33\\b = \sqrt{33} \\[/tex]b ≈ 6; x ≈ 6-4 ≈ 2
b) [tex]30^2 + x^2 = 150^2\\900 + x^2 = 22500\\x^2 = 21600\\x = \sqrt{21600}[/tex]x ≈ 147
c) [tex]1^2 + x^2 = 1,25^2 \\1+x^2 = 1,5625\\x^2 = 0,5625\\x = \sqrt{0,5625} = 0,75[/tex] [tex]1^2 + 0,75^2 = c^2 \\1 + 0,5625 = c^2 \\c^2 = 1,5625\\c = \sqrt{1,5625} = 1,25[/tex]
