小学六年级上册配套练习册数学苏教版56页答案

小学六年级上册配套练习册数学苏教版56页答案
小学六年级上册配套练习册数学苏教版56页答案

小学六年级上册配套练习册数学苏教版56页答案
300x3.14x四分之三等于706.5

六年级上册数学练习册第56面最后一题怎么写呀？
10.计算图中阴影部分的面积。
1.一个圆形，左下角有一个小正方形，这个小正方形的面积是300平方米，其它的面积是多少？（其它的面积不是正方形）

一个圆形草地平均分成四份，每一份的图形就是度数为90°的扇形。然后题目又说这个圆的半径等于一个正方形的边长，正方形的面积是300平方米，这个正方形覆盖在圆的左下角。问这个圆的四分之三的面积是多少？

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