Question

请老师帮我解决这道几何题.如图,C为线段AE上一动点（不与点A E重合）在AE同侧分别做等边△ABC和等边△C

Answer 1

由已知得

∠ACB=∠BCD=∠DCE=60º

AC=BC ,DC=EC

∠ACD=∠BCE=120º

⊿ACD≌⊿BCE

∠ADC=∠BCE

∠DHE=∠DAC+∠BEC

=∠DAC+∠ADC

=∠DCE=60º