To solve for both the circumference and the area of a circle, we can use the formulas below:

1. Circumference: $C = 2 \pi r$
2. Area: $A = \pi r^2$

where $r$ is the radius of the circle.

Given:

• Radius ($r$) = 7.3 meters

Part 1: Circumference

$C = 2 \pi \times 7.3$ $C \approx 2 \times 3.14159 \times 7.3 \approx 45.9 \text{ meters}$

The circumference, rounded to the nearest tenth, is approximately 45.9 meters.

Part 2: Area

$A = \pi \times (7.3)^2$ $A \approx 3.14159 \times 53.29 \approx 167.4 \text{ square meters}$

The area, rounded to the nearest tenth, is approximately 167.4 square meters.

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Would you like further explanation on these calculations, or have any specific questions?

Here are five related questions to deepen your understanding:

1. How would the area and circumference change if the radius doubled?
2. Can you calculate the diameter of the circle and use it to find the circumference?
3. What is the formula for the area of a sector if only a portion of the circle is given?
4. How does rounding to different decimal places affect the precision of circumference and area?
5. Can you express the circumference and area in terms of a fraction of $\pi$ for exact values?

Tip: Remember that for circular calculations, keeping a few more decimal places in $\pi$ can help maintain precision in intermediate steps before rounding the final answer.