Skorzystamy z tw. Talesa.
[tex]\frac{a}{4}=\frac{3}{6}\\\frac{a}{4}=\frac{1}{2}\ |*4\\a=2\\\\\frac{b}{6}=\frac{12}{10}\\\frac{b}{6}=\frac{6}{5}\ |*6\\b=\frac{36}{5}=7\frac{1}{5}=7,2[/tex]
