File talk:Quadrilaterals.svg
跳转到导航
跳转到搜索
Why not just use the standard congruence hatch marks? Using colors seems like it would be hard to follow for people with colorblindness. 69.210.140.157 11:22, 3 October 2012 (UTC)
Why not just use the standard congruence hatch marks? Using colors seems like it would be hard to follow for people with colorblindness. 69.210.140.157 11:22, 3 October 2012 (UTC)[回复]
