To find the circumference and area of a circle, you can use the following formulas:
- Circumference = \( 2 \pi r \)
- Area = \( \pi r^2 \)
Given that the radius \( r = 38 \) feet and using \( \pi \approx 3.14 \), we can substitute into the formulas.
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Circumference: \[ \text{Circumference} = 2 \times 3.14 \times 38 \] \[ = 2 \times 3.14 \times 38 = 6.28 \times 38 = 238.64 \text{ feet} \]
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Area: \[ \text{Area} = 3.14 \times (38^2) \] \[ = 3.14 \times 1444 = 4539.76 \text{ square feet} \]
Now we can complete the table with the calculated values.
| Radius | Circumference | Area | |----------|---------------|----------| | 38 ft. | 238.64 ft. | 4539.76 ft² |
So the completed table is:
- Circumference: 238.64 feet
- Area: 4539.76 square feet