To convert hectares to square meters, use the fact that:

$1 \text{ hectare} = 10,000 \text{ square meters}$

So, for 4 hectares:

$4 \text{ hectares} = 4 \times 10,000 = 40,000 \text{ square meters}$

Thus, 4 hectares is equal to 40,000 square meters.

Would you like any additional details or clarifications?

Here are 5 related questions to deepen your understanding:

1. How many square meters are in 1 square kilometer?
2. How do you convert square meters to square centimeters?
3. What is the difference between an acre and a hectare?
4. How do you convert hectares to square feet?
5. If a plot is 0.5 hectares, how many square meters is it?

Tip: Always ensure that units are consistent when converting between different systems (e.g., metric vs imperial).