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1, square area: 6.28/4 = 1.57m (find side length)1.57 *1.57 = 2.4649m2.

Area of circle: 6.28/3. 14/2= 1 m (radius) 3.14 *1= 3.14m2.

3. 14 >2.4649 The area of a circle is 3.14-2.4649 = 0.6655438+0m2.

2. Radius of the circle: 6/2/2= 1.5 decimeter (that is, dividing a big square into four small squares with sides of 3 decimeters, which is also the diameter of the circle).

Area of circle: 3.14 *1.5 *1.5 = 7.065 square decimeter.

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