What is the correct calculation for the outside radius mentioned in carpentry?

The correct calculation for the outside radius in carpentry involves adding two dimensions: the initial radius and the additional measurement that contributes to the complete radius. In this case, the figures provided, 2500 mm and 1100 mm, indicate measurements that you need to sum to find the total outside radius.

When you add 2500 mm to 1100 mm, the outcome is 3600 mm, which represents the correct total distance from the center point to the outer edge for the radius being calculated. This method is commonly used in various applications in carpentry, including determining the dimensions for arcs or circular cutouts where both the core dimension and an additional offset or projection are required for accurate construction.

Other calculations in this question do not satisfy the criteria for determining a positive outside radius, either resulting in negative numbers or values not pertinent to the context of radius calculations in carpentry. Understanding the concept of summing relevant measurements is crucial for achieving precise work in woodworking and construction.