As shown on the right,large square area is 10cm的平方 lar

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As shown on the right,large square area is 10cm的平方 larger than the small sruare area,Please calculate the area of the circle.

小生感激不尽!

S=π（10÷2﹚²=25π
S=π﹙10√2÷2﹚²=50π

再问：为什么？？你觉得小学的人看得懂吗？
再答：是10平方厘米还是（10厘米）的平方
再问：是10平方厘米
再答： S=3.14×﹙√10÷2﹚²=7.85平方厘米圆的直径就是大正方形的边长，大正方形的面积为10平方厘米，边长为√10厘米，再求圆的面积就可以了S=3.14×﹙2√5÷2﹚²=15.7平方厘米圆的直径就是大正方形的对角线，大正方形的面积为10平方厘米，对角线为2√5厘米，再求圆的面积小学题的话，有的难。我英语不好，不知做的对吗
再问： √是什么意思？我们小学生还没学过，最好换一种容易看懂的方法.... 满意我发誓会采纳！！
再答： 1.设圆的半径为x,大正方形的面积﹙2x﹚²=10,x²=2.5 圆的面积=3.14×2.5=7.85平方厘米 2.设圆的半径为x,大正方形的面积为2x²=10,x²=5 圆的面积=3.14×5=15.7平方厘米

As is shown in picture AB⊥CD、AB=12cm,CD=7cm.What is the area This square is twice as large as that one=?This square is on As in figure，the area of square&nbs as is shown,as shown,as it is shown in the picture.哪个对?为什么? 1.The figure on the right is composed of square ABCD and tri as is shown in the graph as is shown in the pictures用法 The figure as shown is made up of three squares of side 3 cm As shown in figure 1,point C is on the segment BG and quadri The picture on the left is as()as the one on the right .(bea 请翻译As shown in the following diagram,the area of Triangle AB as is shown in ?