HELPPP!!!!

Complete the​ two-column proof by filling in the blanks.


HELPPP Complete The Twocolumn Proof By Filling In The Blanks class=

Answer :

Answer:

2. Substitution property

3. Given

4. Definition of congruent angles

5. Substitution property

6. Subtraction property of equality

7. Definition of congruent angles

8. Given

9. Definition of equilateral triangle

11. SAS (10, 7, 9)

Step-by-step explanation: