Question

下面圖形中，______有一條對(duì)稱軸，______有兩條對(duì)稱軸，______有三條對(duì)稱軸，______有四條對(duì)稱軸，______有無數(shù)條對(duì)稱軸．

Answer 1

根據(jù)軸對(duì)稱圖形的定義可知：A正方形有4條對(duì)稱軸，B等邊三角形有3條對(duì)稱軸，C等腰直角三角形有1條對(duì)稱軸，D圓環(huán)有無數(shù)條對(duì)稱軸，E菱形有2條對(duì)稱軸，F(xiàn)有3條對(duì)稱軸，G、H不是軸對(duì)稱圖形，沒有對(duì)稱軸，K長(zhǎng)方形有2條對(duì)稱軸．
答：C有一條對(duì)稱軸，E、K有兩條對(duì)稱軸，B、F有三條對(duì)稱軸，A有四條對(duì)稱軸，D有無數(shù)條對(duì)稱軸．
故答案為：C；E、K；B、F；A；D．