Draw a circle with the largest area in a square with a side length of 4cm. If you cut off the largest circle, what is the area of the remaining part?

Draw a circle with the largest area in a square with a side length of 4cm. If you cut off the largest circle, what is the area of the remaining part?

According to the meaning of the title, the largest circle is a circle whose diameter is the length of a square. S-surplus = s-zheng-s-circle = 4 × 4-3.14 × (4 △ 2) 2 = 16-3.14 × 4 = 16-12.56 = 3.44 (square centimeter). A: the area of the remaining part is 3.44 square centimeter