Lemma practice generator similar-triangles #84,188 · Geometry · Congruence & similarity

Similar triangles

Triangles $A B C$ and $D E F$ are similar, with $A \leftrightarrow D$ , $B \leftrightarrow E$ , $C \leftrightarrow F$ . If $A B = 39$ , $B C = 59$ and $D E = 9$ , find $E F$ .

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