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有些数学问题的解决,常常需要应用一些特殊的解题策略来突破难点,找到解题的关键,从而顺利解题。一、从头想起例1在一个正六边形的纸片内有60个点,以这60个点和六边形的6个顶点为顶点的三角形,最多可以剪下多少个?思路点拨:如果紧抓住正六边形内的60个点及正六边形的6个顶点思考,总觉得情形过于复杂,无从下手。若从头想起,反而能逐步揭开题中的奥秘。如果正六边形内只有1个点,则可剪出6个三角形:出现的第2个
Some mathematical problems, often need to apply some special problem-solving strategies to break through the difficulties, find the key to solving problems in order to successfully solve the problem. First, remembered Example 1 in a regular hexagonal paper 60 points, the sixty-six points and six vertices of the triangle vertex, up to how many can be cut? Point of thought: If the tight Seize the hexagons of the sixty-six point and the hexagonal six vertices thinking, always feel the situation is too complicated, can not start. If you start from scratch, but gradually opened the mystery of the question. If there is only one point in a regular hexagon, you can cut out 6 triangles: the second one that appears