Find the area of the circle with the given radius or diameter. Use "3.14" for π. Round your answer to the nearest tenth. Diameter = 42.0 mm (1 point) Responses 137.6mm2 137.6mm 2 376.7 mm2 376.7 mm 2 1,384.7 mm² 1,384.7 mm² 6,027.0 mm2 6,027.0 mm 2
Area of a circle can be calculated using the formula A = πr^2, where r is the radius. Since the diameter is given, we first need to find the radius by dividing the diameter by 2.
Radius = Diameter / 2
Radius = 42.0 mm / 2
Radius = 21.0 mm
Now, we can plug the radius back into the formula to find the area:
A = πr^2
A = 3.14 * (21.0)^2
A = 3.14 * 441.0
A = 1,384.7 mm²
Therefore, the area of the circle with a diameter of 42.0 mm is 1,384.7 mm². The closest rounded answer provided is 1,384.7 mm².