Question

please tell me this solution​

Answer 1

Given : ΔABC is equilateral triangle

          ∠DAC = ∠EBC

             and C is the midpoint between DE so, DC = EC

Prove that : ΔDAC ≅ ΔEBC

proof :  ΔDAC and ΔEBC

               DC = EC                  (given)

              ∠DAC = ∠EBC              (given)

               AC = BC         (ΔABC is equilateral triangle ,so AB = BC = AC)

by S.A.S ΔDAC ≅ ΔEBC are congruent