(8)
Given:
\[
\text { Given: } \begin{aligned}
A B & =A C \\
A D & =\frac{1}{3} A C \\
A E & =\frac{1}{3} A B \\
\text { Prove: } A D & =A E
\end{aligned}
\]
\( \frac{1}{3} AC = \frac{1}{3} AB \)
Step 1 :\( AD = \frac{1}{3} AC \)
Step 2 :\( AE = \frac{1}{3} AB \)
Step 3 :\( \frac{1}{3} AC = \frac{1}{3} AB \)