Triangles $ABC$ and $DEF$ have $AB=DE=7\text{ cm}$, $\angle BAC=\angle EDF=35^\circ$ an

Question

Triangles $ABC$ and $DEF$ have $AB=DE=7\text{ cm}$, $\angle BAC=\angle EDF=35^\circ$ and $\angle ABC=\angle DEF=65^\circ$. State a test proving that $\triangle ABC\equiv\triangle DEF$, explaining which side is included.[2] Find $\angle DFE$.[1]

Accepted Answer

(a) ASA, with included sides $AB$ and $DE$ (b) $80^\circ$

Congruence from two angles and a side

Congruence from two angles and a side

Solution:

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