What is the area of a circle that has a radius of 19.3 ft?

To find the area of a circle, you can use the formula:

\[
A = \pi r^2
\]

where \( A \) is the area, \( \pi \approx 3.14159 \), and \( r \) is the radius of the circle.

Given that the radius \( r \) is 19.3 ft, we can substitute this value into the formula:

\[
A = \pi \times (19.3)^2
\]

\[
A \approx 3.14159 \times 372.49
\]

\[
A \approx 1170.357 \, \text{square feet}
\]

Rounding to two decimal places, the area is approximately:

\[
A \approx 1170.36 \, \text{square feet}
\]

So, the area of the circle is about **1170.36 square feet**.

Would you like more details or have any questions?

Here are 5 related questions for further practice:

1. What is the area of a circle with a radius of 10 ft?
2. How would you find the area of a circle if you know the diameter is 50 ft?
3. If the area of a circle is 500 square feet, what is the radius?
4. What is the circumference of a circle that has a radius of 19.3 ft?
5. How does doubling the radius of a circle affect its area?

**Tip:** Remember, the area of a circle increases with the square of the radius, meaning if you double the radius, the area becomes four times larger.

Learn how to calculate the area of a circle with a radius of 19.3 feet using the formula A = πr^2. This problem involves circle geometry and basic algebraic operations. Suitable for Grades 7-9.

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