The problem in the image asks to calculate the area of a circle given that the radius is 27 mm, and to give the answer to 1 decimal place.

The formula for the area $A$ of a circle is:

$A = \pi r^2$

Where:

• $r$ is the radius, and
• $\pi$ is approximately 3.14159.

Given that the radius $r = 27 \, \text{mm}$, we can substitute this into the formula:

$A = \pi (27)^2 = \pi \times 729 \approx 3.14159 \times 729 = 2290.22 \, \text{mm}^2$

Thus, the area of the circle is approximately 2290.2 mm² when rounded to 1 decimal place.

Would you like more details or have any other questions? Here are five related questions to consider:

1. What is the area of a circle if the radius is doubled?
2. How would the area change if the radius were halved?
3. How do we calculate the circumference of a circle using the radius?
4. Can you find the area of a sector if the angle is 90° and the radius is 27 mm?
5. How is the concept of area applied in real-life problems involving circles?

Tip: Always square the radius before multiplying by $\pi$ to avoid common mistakes when calculating the area of a circle!