Find the radius and diameter of the circle if its length is 64.056dm

1. By the condition of the problem, it is known that the circumference is equal to 64.056 dm.

2. In the calculations, we will use the familiar geometric formula to find the circumference L = 2 * п * R.

From the given value L, we determine the desired value of the unknown R:

64.056 dm = 2 * 3.14 * R, whence R = 64.056 dm: 6.28 = 10.2 dm.

We know that the diameter D = 2 * R = 10.2 dm * 2 = 20.4 dm.

Answer: For a given circle, its radius is 10.2 dm, the diameter is 20.4 dm.