A circle has a diameter d=0.4d = 0.4d=0.4 meters. What is the area? (Use π≈3.14\pi \approx 3.14π≈3.14)
0.12560.12560.1256 m2^22
0.03140.03140.0314 m2^22
0.50240.50240.5024 m2^22
0.25120.25120.2512 m2^22