The radius of a sphere is 1.23 cm. What is its surface area?

Explanation

To find the surface area of a sphere with a radius of 1.23 cm, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the formula for the surface area of a sphere**:
The formula for the surface area (A) of a sphere is given by:
\[
A = 4 \pi r^2
...