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故事分享六(4)班正在举行数学智乐园游艺会,这可是同学们最期待的活动。在活动临近结束时,淘淘给大家出了这样一个题目:(如图)已知四个小圆的半径是3cm,求下面阴影部分的面积。一阵思考后,飞飞就抢先回答道:“求阴影部分的面积就是一个小圆的面积加上四个小圆夹的中间的阴影部分就可以了。”飞飞的思考真快,但淘淘也有自己的准备,他说:“飞飞的想法很不错,但要求四个小圆夹的中间的阴影部分就有一些麻烦,谁还有不同
Story sharing Six (4) classes are held Mathematical Paradise Amusement Park, which is the most anticipated activities of students. Towards the end of the event, Tao Tao to everyone out of such a topic: (pictured) Known four small circle radius is 3cm, find the shadow of the area below. After thinking for a while, Feifei first replied: ”The area of the shaded area is the area of a small circle plus the shaded portion of the middle of the four small folders.“ ”Feifei thinks really fast, but Tao Tao also has its own preparation, he said: "Feifei idea is very good, but asked the four folders in the middle of the shadow there is some trouble, who is different