The diameter of a circle is 140 ft. What is the area of the circle? Use 3.14 for π .(1 point)

Question

Responses

439.6 ft.2
439.6 ft squared

61,544 ft.2
61,544 ft squared

879.2 ft.2
879.2 ft squared

15,386 ft.2

Answer 1

To find the area of a circle, you can use the formula:

\[ \text{Area} = \pi r^2 \]

where \( r \) is the radius of the circle. Given that the diameter is 140 ft, the radius \( r \) is:

\[ r = \frac{diameter}{2} = \frac{140}{2} = 70 \text{ ft} \]

Now, using \( \pi = 3.14 \):

\[ \text{Area} = 3.14 \times (70)^2 \] \[ \text{Area} = 3.14 \times 4900 \] \[ \text{Area} = 15,386 \text{ ft}^2 \]

Thus, the area of the circle is 15,386 ft².