Volume and surface area of a solid hemisphere are numerically equal what is the diameter of the hemisphere?

Explanation

To solve the problem where the volume and surface area of a solid hemisphere are numerically equal, we can follow these steps:

### Step 1: Understand the formulas
The volume \( V \) and surface area \( A \) of a solid hemisphere with radius \( r \) are given by:
- Volume of a hemisphere:
\[ V = \frac{2}{3} \pi r^3 \]
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