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

The radius of the circle is half the diameter, so the radius is 140 ft / 2 = 70 ft.

The area of a circle is given by the formula A = πr^2, where π is the constant 3.14 and r is the radius.

Plugging in the values, we get A = 3.14 * (70 ft)^2 = 3.14 * 4900 ft^2 = 15,386 ft^2.

Therefore, the area of the circle is 15,386 square feet.