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落j断晰法如即所衬么构造如图3所示的△丹刀‘(在-一矩形内,矩形各边长度如图3所示),则琦‘=V淤干护一合价2l}一告露右二,2以v讶不石可及刀一甲子干解卜知_故八滩Bc的面积为4砧一李一动 乙浦粼断肠币朋勺粉___一…户图2图飞2004年1月号“数学创新月月练”参考答案请下载后查看，本文暂不支持在线获取查看简介。
What is the structure of the structure, such as the structure of the bridge, as shown in Fig. 3, △ Dan knife? (in-a rectangle, the length of each side of the rectangle is shown in Fig. 3), then Qi’ = V dry protection a price 2l} One tells the right two, 2 is surprised that v can’t get a knife and a knife to dry out the solution to understand the knowledge _ so eight beach Bc’s area is 4 anvil one Li Yidong Yipu’s broken intestine powder spoon powder ___... Figure 2 Figure Fly January 2004 “Mathematical Innovation Month Training” Reference Answer Please download and view, this article does not support online access to view profile.