👤

ma puteti ajuta am nevoie urgent bn si cm nu sunt linii importante

Ma Puteti Ajuta Am Nevoie Urgent Bn Si Cm Nu Sunt Linii Importante class=

Răspuns :

[tex]tr. AMC\\
tr. ANB\\ \ :
AB= AC( ABC. isoscel) \\
m(A)=m(A) (\ \textless \ comun) \\
AM=AN\\ (crit. L.U.L.)\\
=\ \textgreater \ tr. AMC=tr. ANB, (
\\atunci MC=NB )[tex]tr. AMC\\
tr. ANB\\ \ :
AB= AC( ABC. isoscel) \\
m(A)=m(A) (\ \textless \ comun) \\
AM=AN\\ (crit. L.U.L.)\\
=\ \textgreater \ tr. AMC=tr. ANB, (
\\atunci MC=NB )


\\b) \\AM=AN =\ \textgreater \ MB=NC (AB=AC)\\m(\ \textless \ MOB)=m(NOC) (unghiuri opuse la varf)

\\CM=NB si {O} = CM int. NB =\ \textgreater \ OM=ON,MO=NO\\ \\

tr. MOB\\
tr.NOC:\\
MB=NC\\
MO=ON\\
m(\ \textless \ MOB)=m(\ \textless \ NOC)\\
=\ \textgreater \ tr.MOB=tr.NOC=\ \textgreater \ BO=OC \\
\\
tr.COB, BO=OC=\ \textgreater \ tr. COB este isoscel [/tex]