The area of a square is 20 square centimeters. Find the area of the largest circle in the square

The area of the largest circle in a square is 15.7 square centimeters. Because I can't make a radical sign, I can only express it in words. If the area of a square is 20 square centimeters, then its side length is the root sign 20 (because the area of a square is the square of the side length). Remember to take the diameter of the largest circle in a square as a positive sign

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7. Draw the largest circle in a square. It is known that the area of a square is 15 square centimeters. What is the area of a circle?
8. As shown in the figure, the area of the triangle is 15 square centimeters. The area of the whole circle is 15 square centimeters______ Square centimeter
9. It is known that the area of a small square is 15 square centimeters, and the area of a circle is? One side of a square is the radius of a circle I hope the formula is easy to understand,
10. The area of a square is 15 square centimeters. Find the area of a circle
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12. The area of the right angle isosceles triangle in the following two circles is 5 square centimeter
13. As shown in the figure: the area of an isosceles right triangle in a circle is 5 square centimeters. How to calculate the area of a circle? How to write the calculation process
14. How many percent less is the area of the circle than that of the square?
15. Cut out the largest circle in a square with a circumference of 8 decimeters. The circumference of the circle is______ Decimeter
16. Place the largest circle in a square with a side length of 10 cm. The area of this circle is () square meters
17. Cut out four identical largest circles on a 40 cm square paper. The area of each circle is ()
18. What is the area of the largest circle cut from a square piece of paper with a side length of 10 cm?
19. Cut a square with a side length of 10 cm into the largest circle. What is the area of the circle? Its area is about a fraction of that of the square
20. In a circle, the largest square only tells you the side length of the square is 10 cm. How to find the area of the circle?