§ Задание 124
\[\boxed{\mathbf{124.}}\]
\[ММ = \frac{1}{3};\]
\[МД = \frac{1}{3};\]
\[ДМ = \frac{1}{3}.\]
\[\frac{1}{3} + \frac{1}{3} = \frac{2}{3}.\]
\[\boxed{\mathbf{124.}}\]
\[ММ = \frac{1}{3};\]
\[МД = \frac{1}{3};\]
\[ДМ = \frac{1}{3}.\]
\[\frac{1}{3} + \frac{1}{3} = \frac{2}{3}.\]