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The figure shows two squares, and the points W, X, Y, and Z lie on a line. If the distance between W and X is equal to the distance between X and Y and to the distance between Y and Z, then the area of the smaller square is what fraction of the area of the larger square?
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分析D选项
分析E选项
WX=XY=YZ 所以WZ=3XY 所以 大正方形:小正方形的边长比为1:3 所以 面积比为1:9 选E
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我觉得我可以去死了,我的数学老师知道我这题做错非抽死我不可
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2018-05-07 11:40:03
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