To find the area of a circle, we use the formula:

$A = \pi r^2$

Where:

• $A$ is the area,
• $r$ is the radius of the circle.

Given:

• $r = 3.56 \, \text{m}$

Substituting the values:

$A = \pi (3.56)^2 = \pi \times 12.6736 \approx 3.1416 \times 12.6736 = 39.825 \, \text{m}^2$

Rounding to 1 decimal place:

$A \approx 39.8 \, \text{m}^2$

So, the area of the circle is approximately 39.8 m².

Would you like more details or further questions? Here are some related ones:

1. How does the value of $\pi$ affect the calculation of the area?
2. What would the area be if the radius was doubled?
3. How can you find the radius if you're given the area of the circle?
4. What other formulas are important when working with circles?
5. How does changing the radius by a small amount affect the area of the circle?

Tip: Remember that the area of a circle increases exponentially as the radius increases. So, even small changes in the radius can significantly impact the area.