Question

△abc≅△adf, find df. df=?

Explanation:

Step1: Recall congruent triangles property

In congruent triangles, corresponding sides are equal. So, for $\triangle ABC \cong \triangle ADF$, the corresponding sides $BC$ and $DF$ are equal.

Step2: Identify the length of BC

From the diagram, the length of $BC$ is 17.

Step3: Determine DF

Since $BC = DF$ (from congruent triangles property) and $BC = 17$, we get $DF = 17$.

Answer:

17