The area of the circle is 625 / п. Find the length of its circumference.

1. The area of a circle can be calculated by the formula:

S = n x R²,

where R is the radius, n is the number of pi.

Where can I express the radius of this circle:

R = √ (S / n).

We substitute the value, we get the result:

R = √ (S / п) / п;

R = √ (S / п²);

R = √ (625 / п²);

R = 25 / п.

2. Now we can calculate the circumference, which is found by the formula:

L = 2 x n x R;

L = 2 x n x (25 / n);

L = 50.

It is not known in what units of measurement the area of the circle is given, so we will modestly keep silent about this.

Answer: the length of this circle is 50.