Geometry

Question Analysis
This question involves calculating the total surface area of a hemisphere, which includes:  
1. The curved part (half of a full sphere).  
2. The circular base.  

Key Concept Explanation
- Curved Surface Area (CSA) of hemisphere = (half of ).  
- Base Area = (since the base is a circle).  
- Total Surface Area (TSA) = CSA + Base = .  

Step-by-step Solution
1. Given: cm.  
2. Curved Surface Area = cm².  
3. Base Area =