11) choose the correct answer.
if $ \triangle d e f $ is isosceles, which two angles of $ \triangle d e f $ appear to be the base angles?
$ \angle e $ and $ \angle f $
$ \angle e $ and $ \angle d $
$ \angle d $ and $ \angle f $

Question

Accepted Answer

# Explanation:
## Step1: Recall the property of isosceles triangle
In an isosceles triangle, the base angles are equal. The base angles are the angles opposite the equal sides.
## Step2: Analyze the triangle $\triangle DEF$
In $\triangle DEF$, if we assume the equal sides are $DE$ and $DF$ (by visual inspection of the figure - though not having side - length markings, but in the context of the problem), then the angles opposite these sides are $\angle E$ and $\angle F$.

# Answer:
$\angle E$ and $\angle F$

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QUESTION IMAGE

Question

Explanation:

Step1: Recall the property of isosceles triangle

Step2: Analyze the triangle \(\triangle DEF\)

Answer: