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    In two triangle ABC and DEF, if ABˉ=EFˉ,BCˉ=DFˉ and CAˉ=DEˉ, then:\bar{AB} = \bar{EF} , \bar{BC} = \bar{DF} \space and \space \bar
    Question

    In two triangle ABC and DEF, if ABˉ=EFˉ,BCˉ=DFˉ and CAˉ=DEˉ, then:\bar{AB} = \bar{EF} , \bar{BC} = \bar{DF} \space and \space \bar{CA} = \bar{DE}, \space then:​​

    A.

    ABCDEF\triangle ABC \cong \triangle DEF​​

    B.

    DEFBCA\triangle DEF \cong \triangle BCA​​

    C.

    BACFDE\triangle BAC \cong \triangle FDE​​

    D.

    CBADFE\triangle CBA \cong \triangle DFE​​

    Correct option is D

    Given:

    AB=EF BC=DF CA=DE\overline{AB} = \overline{EF}\\ \ \\\overline{BC} = \overline{DF} \\ \ \\\overline{CA} = \overline{DE}

    These conditions suggest that the corresponding sides of triangles ABC and DEF are equal.

    Concept Used:

    If the corresponding sides of two triangles are equal, then the triangles are congruent by the SSS (Side-Side-Side) congruency.

    Solution:

    Since AB=EF\overline{AB} = \overline{EF}​,  BC=DF\overline{BC} = \overline{DF}​, and  CA=DE\overline{CA} = \overline{DE}​, all corresponding sides of triangle ABC and triangle DEF are equal.

    Therefore, by the SSS congruence, we can conclude that:

    △CBA ≅ △DFE

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