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Find the area and the circumference of a circle with diameter 7 m.
Use the value 3.14 for л, and do not round your answers. Be sure to include the correct units i

Verified Answer :

GinnyAnswer

To find the area and the circumference of a circle with a diameter of 7 meters, follow these steps:

1. Identify the Diameter:
- The diameter of the circle is given as 7 meters.

2. Calculate the Radius:
- The radius of a circle is half of its diameter.
- Therefore, the radius \(\( r \)\) is:
\(\[ r = \frac{\text{diameter}}{2} = \frac{7}{2} = 3.5 \text{ meters} \]\)

3. Calculate the Circumference:
- The circumference \(\( C \)\) of a circle can be calculated using the formula:
\(\[ C = 2 \pi r \]\)
- Given \(\( \pi \approx 3.14 \)\) and \(\( r = 3.5 \text{ meters} \)\), the circumference is:
\(\[ C = 2 \times 3.14 \times 3.5 = 21.98 \text{ meters} \]\)

4. Calculate the Area:
- The area \(\( A \)\) of a circle can be calculated using the formula:
\(\[ A = \pi r^2 \]\)
- Using \(\( \pi \approx 3.14 \)\) and \(\( r = 3.5 \text{ meters} \)\), the area is:
\(\[ A = 3.14 \times (3.5)^2 = 38.465 \text{ square meters} \]\)

Conclusion:
- The circumference of the circle is \(\( 21.98 \)\) meters.
- The area of the circle is \(\( 38.465 \)\) square meters.

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