To calculate the centroid of this shape, we can follow a process of decomposition. The given shape seems to consist of a rectangle with two curved cutouts (arcs). Here's how we can approach the centroid calculation:

Step-by-step process:

1. Decompose the shape:

   • We can view the shape as a large rectangle of dimensions $60 \times 210$.
   • Then subtract the two curved sections on the left and right sides.

2. Centroid of the Rectangle: The centroid of the rectangle itself (without any cutouts) is straightforward. The rectangle has dimensions: $\text{Width} = 60, \quad \text{Height} = 210$ The centroid of this rectangle is located at: $\left( \frac{60}{2}, \frac{210}{2} \right) = (30, 105)$

3. Estimate the curved sections: The two curved sections are arcs that subtract area from the rectangle, shifting the centroid slightly. To account for their effect, we need to approximate or calculate the centroid of each curved section and use the principle of composite areas to determine the combined centroid.

4. Centroid of Curved Sections: Assuming these arcs are part of circles with known radii (which can be inferred from dimensions or approximated), we can calculate their centroids. The centroid of a circular segment is typically located at a height of: $h = \frac{4R \sin^3(\theta/2)}{3(\theta - \sin \theta)}$ where:

   • $R$ is the radius of the circle the arc is part of.
   • $\theta$ is the angle subtended by the arc at the circle's center.

However, the exact radius or angle isn’t provided explicitly. Would you like me to proceed with assumptions based on the geometry, or do you have additional details for the arcs (such as radii or angles)?

Next Steps:

• I can either make reasonable approximations to continue the centroid calculation, or you can provide more specific data about the curved sections if available.

Let me know how you'd like to proceed.