If so, the diagonal length of the square is the diameter of the circle.
It is known that if the square area is 36 square centimeters, the side length is 6 centimeters, and the diagonal length is 6√2 centimeters.
Then the diameter of the circle is 6 √ 2cm, the radius is 3 √ 2cm, and the area of the circle is π(r*r)= 18π? Square centimeters.
Tips: The circumscribed circle of a square is equal to the diagonal diameter of the square; The inscribed circle of the square, the diameter is equal to the side length of the square, come on ~ ~