To find the measurements of the circle given the radius of 7 meters, we can use the following formulas:
-
Diameter: The diameter (D) is twice the radius (r).
\[ D = 2 \times r = 2 \times 7 , \text{m} = 14 , \text{meters} \] -
Circumference: The circumference (C) can be calculated using the formula:
\[ C = \pi \times D = 3.14 \times 14 , \text{m} = 43.96 , \text{meters} \] -
Radius: The radius (r) is already given as:
\[ r = 7 , \text{meters} \] -
Area: The area (A) is calculated using the formula:
\[ A = \pi \times r^2 = 3.14 \times (7 , \text{m})^2 = 3.14 \times 49 , \text{m}^2 = 153.86 , \text{square meters} \]
Now, we can summarize the results:
- Diameter: 14 meters
- Circumference: 43.96 meters
- Radius: 7 meters
- Area: 153.86 square meters