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)Responses1,256 cm21,256 cm21,256 cm21,256 cm25,024 cm25,024 cm25,024 cm25,024 cm2125.6 cm2125.6 cm2125.6 cm2125.6 cm262.8 cm2
The area of a circle is given by the formula A = πr^2, where r is the radius of the circle. Since the diameter is 40 cm, the radius is 20 cm (half of the diameter).
Plugging in the values, we get A = 3.14 * 20^2 = 3.14 * 400 = 1256 cm^2.
Therefore, the area of the circle with a diameter of 40 cm is 1256 cm^2.