Fill in the blank
`4 sq. m = "_____________" sq. cm `

Answer

To solve the problem of converting 4 square meters to square centimeters, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Conversion Factor**:
We know that 1 meter is equal to 100 centimeters.

2. **Convert Square Meters to Square Centimeters**:
Since we are dealing with square units, we need to square the conversion factor.
\[ 1 \text{ m}^2 = (100 \text{ cm})^2 = 10000 \text{ cm}^2 \]

3. **Calculate for 4 Square Meters**:
Now, we multiply the area in square meters by the conversion factor we just found:
\[ 4 \text{ m}^2 = 4 \times 10000 \text{ cm}^2 = 40000 \text{ cm}^2 \]

4. **Final Answer**:
Therefore, we can fill in the blank:
\[ 4 \text{ sq. m} = 40000 \text{ sq. cm} \]