If the perimeter of a square is equal to that of a circle, the area ratio of the square to the circle is 1:1______ .

If the perimeter of a square is equal to that of a circle, the area ratio of the square to the circle is 1:1______ .

[(x / 4) × (x / 4)]: [π (x / π / 2) 2], = x216: x24 π, = π 4; answer: the area ratio of this square and circle is π 4. So the judgment is: wrong