1. **State the problem:** We need to find the area of a compound polygon composed of rectangles and a triangle with given side lengths.
2. **Identify the shapes and dimensions:** The figure consists of:
- A left rectangle with dimensions 5 cm by 8 cm.
- A top-right rectangle with dimensions 7 cm by 3 cm.
- A right downward extension rectangle with dimensions 2 cm by 9 cm.
- A lower right triangle with base 8 cm and height 5 cm.
3. **Formula for area:**
- Rectangle area = length \times width
- Triangle area = \frac{1}{2} \times base \times height
4. **Calculate each area:**
- Left rectangle area = $5 \times 8 = 40$ cm$^2$
- Top-right rectangle area = $7 \times 3 = 21$ cm$^2$
- Right downward extension area = $2 \times 9 = 18$ cm$^2$
- Lower right triangle area = $\frac{1}{2} \times 8 \times 5 = 20$ cm$^2$
5. **Sum all areas:**
$$
\text{Total area} = 40 + 21 + 18 + 20 = 99 \text{ cm}^2
$$
6. **Final answer:** The area of the figure is **99 square centimeters**.
Compound Polygon Area E277F5
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