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

$\text{Area} = \pi r^2$

Where:

• $\pi$ is approximately 3.14159.
• $r$ is the radius of the circle.

Given that the radius $r = 7 \, \text{cm}$, we can substitute this value into the formula:

$\text{Area} = \pi \times (7)^2 = \pi \times 49$

$\text{Area} \approx 3.14159 \times 49 \approx 153.94 \, \text{cm}^2$

So, the area of the circle is approximately 153.94 cm².

Would you like more details or have any questions?

Here are 5 related questions:

1. What is the circumference of the same circle?
2. If the radius of the circle were doubled, what would the new area be?
3. How would the area change if the radius were halved?
4. What is the area of a sector of the circle with a 90° angle?
5. How does the area of a circle compare to the area of a square with the same perimeter?

Tip: The area of a circle grows quadratically with the radius, meaning small changes in the radius lead to larger changes in area.