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在高中数学必修二(人教版)的教材第90页探究与发现栏目里有这样一篇趣味思考,题目是《魔术师的地毯》,题意描述为:一天,著名魔术大师秋先生拿了一块长和宽都是1.3米的地毯去找地毯匠敬师傅,要求把这块正方形的地毯改制成宽0.8米、长2.1米的矩形。敬师傅对秋先生说:“你这位鼎鼎大名的魔术师,难道连小学算术都没学过吗?边长为1.3米的正方形面积为1.69平方米,而宽0.8米、长2.1米的矩形面积只有1.68平方米。两者并不相等
In high school mathematics compulsory two (PEP) textbook page 90 exploration and discovery section there is such an interesting thinking, the title is ”the magician’s carpet,“ the title is described as: one day, the famous magic master Mr. Chiu took A carpet of 1.3 meters in length and width was found by a carpenter in honor of the master, demanding that the square carpet be reconstructed into a rectangle 0.8 meters wide and 2.1 meters long. Master respect to Mr. Chiu said: ”Your famous magician, do not even the primary school arithmetic never learned it? Side length of 1.3 meters square area of 1.69 square meters, while the width of 0.8 meters, 2.1 meters long Rectangular area of only 1.68 square meters, the two are not equal