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To find the centroid of the given composite shape, we need to calculate both the \( \bar{x} \) (centroid in the x-direction) and \( \bar{y} \) (centroid in the y-direction) based on the areas and centroids of each individual section (A, B, and C).

Here's the general process for calculating the centroid:

1. **Divide the Shape into Sections**: Identify and label each section with its area and centroid coordinates \( (\bar{x}_i, \bar{y}_i) \).

2. **Calculate Each Area** \( A_i \): Find the area of each section.

3. **Locate the Centroid for Each Section**: Identify the coordinates \( \bar{x}_i \) and \( \bar{y}_i \) for the centroid of each section.

4. **Compute \( A_i \times \bar{x}_i \) and \( A_i \times \bar{y}_i \)**: Multiply the area of each section by its respective centroid coordinates in both x and y directions.

5. **Summation**:
   - Add up all the areas \( A = A_1 + A_2 + A_3 \).
   - Calculate the sums of \( A_i \times \bar{x}_i \) and \( A_i \times \bar{y}_i \).

6. **Determine the Centroid Coordinates**:
   - Use the formulas:
     \[
     \bar{x} = \frac{\sum (A_i \cdot \bar{x}_i)}{\sum A_i}
     \]
     \[
     \bar{y} = \frac{\sum (A_i \cdot \bar{y}_i)}{\sum A_i}
     \]

I'll walk through these steps with the given dimensions if you need further help on each step. Let me know if you want detailed calculations for specific sections or any part of the process. 

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Do you need help with the calculations for each section, or would you like further details on a specific part of the process?

### Related Questions
1. How do you determine the centroid coordinates for different shapes (e.g., rectangles, triangles)?
2. What are the general formulas for the centroids of standard geometric shapes?
3. How can you apply the concept of centroid in real-life structural analysis?
4. How does the choice of origin affect the calculation of centroid coordinates?
5. Can centroid coordinates be negative, and what would that imply?

### Tip
When solving centroid problems, always double-check unit consistency (like square centimeters for area and centimeters for distances).

Determine the centroid of a composite shape made up of three sections (A, B, and C) with given dimensions.

Learn how to determine the centroid of a composite shape made up of three sections. This problem involves calculating the area and centroid coordinates for each section and applying centroid formulas to find the composite centroid location. Suitable for high school geometry students.

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