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(2005年重庆第16题)连接抛物线上任意四点组成的四边形可能是(填写所有正确选项的序号).①菱形②有3条边相等的四边形③梯形④平行四边形⑤有一组对角相等的四边形本小题是一个区分度较高的试题,很多学生无从下手,因其是几何作图的存在性问题,所以没有办法构造出适合题意的四边
(Chongqing, Question 16) Any four-point quadrilateral on the connection parabola may be (fill in the numbers of all the correct options). 1 Diamond 2 has 3 sides with equal quadrilateral 3 trapezoid 4 parallelogram 5 with a set of diagonally equal The quadrilateral question is a question with a high degree of discrimination. Many students cannot start, because it is the problem of the existence of geometric drawing, so there is no way to construct the four sides that fit the question.