论文部分内容阅读
题如图1,△ABD、△ACE都是等边三角形.求证:CD=BE.(华东师大版八年级(下)《数学》第94页习题)分析只须证明△ACD≌△AEB,即可得CD=BE.证明△ABD和△ACE都是等边三角形,
Question Figure 1, △ ABD, △ ACE are equilateral triangles. Proof: CD = BE. (East China Normal University version of the eighth grade (below) “Mathematics” page 94 exercises) analysis only need to prove △ ACD ≌ △ AEB, You can get CD=BE. Prove that both ABD and △ACE are equilateral triangles.