Ответ:

\[a = 5,6;\ \ b = 7,3:\ \ \ \ \]
\[c = \sqrt{(5,6)^{2} + (7,3)^{2}} =\]
\[= \sqrt{31,36 + 53,29} =\]
\[= \sqrt{84,65} \approx 9,2.\]

\[a = 5,6;\ \ b = 7,3:\ \ \ \ \]
\[c = \sqrt{(5,6)^{2} + (7,3)^{2}} =\]
\[= \sqrt{31,36 + 53,29} =\]
\[= \sqrt{84,65} \approx 9,2.\]