Area of triangle = \( \frac{1}{2} \times \text{base} \times \text{height} \)<br><br>
&bull; From the figure, identify the base and height of the shaded triangle within rectangle EFGH<br>
&bull; Area = \( \frac{1}{2} \times 10 \times 7 = 35 \) cm&sup2;<br><br>
Final Answer: 35