Complete the table by finding the circumference and area of a circle with a radius of 38 feet. Substitute 3.14 for pi. Express your answers to the hundredths place.(1 point)

The table displays the circumference and area of a circle with a given radius of 38 feet.n
Radius Circumference Area
38 ft.  ft.  ft.2

Thx

1 answer

To complete the table, we'll calculate the circumference and area of a circle using the provided radius of 38 feet, substituting 3.14 for π.

  1. Circumference (C) is calculated using the formula: \[ C = 2 \pi r \] Substituting \(r = 38\) feet and \(\pi \approx 3.14\): \[ C = 2 \times 3.14 \times 38 \] \[ C = 6.28 \times 38 \] \[ C = 238.64 \text{ feet} \]

  2. Area (A) is calculated using the formula: \[ A = \pi r^2 \] Substituting \(r = 38\) feet: \[ A = 3.14 \times (38)^2 \] \[ A = 3.14 \times 1444 \] \[ A = 4526.16 \text{ square feet} \]

Now we can fill in the table:

| Radius | Circumference | Area | |----------|---------------|--------------| | 38 ft. | 238.64 ft. | 4526.16 ft² |