Find the area of a circle with a diameter of 40 cm. Use 3.14 for π and express your answer to the tenths place. Use the formula sheet provided. (1 point)
The formula for the area of a circle is:
Area = π * (radius)^2
Since the diameter is 40 cm, the radius is half of that, which is 20 cm.
Plugging in the values:
Area = 3.14 * (20)^2
Area = 3.14 * 400
Area = 1256 cm^2
Therefore, the area of the circle with a diameter of 40 cm is 1256 cm^2.