如图,AE、AD是直线且AB=BC=CD=DE=EF=FG=GA,若∠DAE=α,则α=∵AG=GF,∴∠AFG=∠DAE=α,∴∠EGF=2∠DAE=2α,∵EF=FG,∴∠GEF=∠EGF=2α,∴∠EFD=∠GEF+∠DAE=3α,又∵DE=EF,∴∠EDF=∠EFD=3α,∵AB=BC=CD=DE=EF=FG=GA,∴AD=AE,∴∠AED
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/03 00:48:39
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