Area of triangle = \( \frac{1}{2} \times \text{base} \times \text{height} \)<br><br>
&bull; Rectangle: AD = BC = 8 cm<br>
&bull; AE = EB = AD = 8 cm, so AB = AE + EB = 16 cm<br>
&bull; Shaded triangle has base AD = 8 cm and height AB = 16 cm<br>
&bull; Area = \( \frac{1}{2} \times 8 \times 16 = 64 \) cm&sup2;<br><br>
Final Answer: 64