S_(Δ M_(1)N_(1)L_(1)):S_( Δ MNL)=k^2
⇒
k^2=272:97,92=[m]\frac{272}{97,92}=\frac{16\cdot 17}{\frac{9792}{100}}=\frac{16\cdot 17\cdot 100}{17\cdot 576}=\frac{16\cdot 17\cdot 100}{17\cdot 4\cdot 144}=\frac{16\cdot 100}{4\cdot 144}[/m]
k=[m]\frac{40}{2\cdot 12}=\frac{10}{6}[/m]
M_(1)N_(1):MN=[m]\frac{10}{6}[/m]
MN=[m]\frac{6\cdot 34}{10}=20,4[/m]