To find the area of the sand mandala in the shape of a circle with a radius of 2.5 feet, we can use the formula for the area of a circle:

$A = \pi r^2$

Given:

• Radius ($r$) = 2.5 feet
• $\pi \approx 3.14$

Calculation:

$A = 3.14 \cdot (2.5)^2$ $A = 3.14 \cdot 6.25$ $A = 19.625 \, \text{ft}^2$

Final Answer:

The area of the sand mandala is 19.63 ft² (rounded to two decimal places).

Let me know if you'd like further details or explanations. Here are some related questions for practice:

1. What is the circumference of the same circle using $C = 2 \pi r$?
2. How would the area change if the radius doubled?
3. Can you calculate the diameter of the circle?
4. If the area was calculated using $\pi \approx 3.1416$, what would be the result?
5. How would the formula change for a semicircular sand mandala?

Tip: Always square the radius before multiplying by $\pi$ when calculating the area of a circle.