Равенство элементов треугольников \(\triangle DEF\) и \(\triangle D_1E_1F_1\)

• \(ED = E_1D_1\)
• \(EF = E_1F_1\)
• \(DF = D_1F_1\)
• \(\angle DEF = \angle D_1E_1F_1\)
• \(\angle DFE = \angle D_1F_1E_1\)
• \(\angle EDF = \angle E_1D_1F_1\)