95.8k views
4 votes
I need help finding A

I need help finding A-example-1

1 Answer

8 votes

Answer:

a=23

Explanation:

angle a, b,c and are congruent

3a-9+3a-9+3a-9=180

combine like terms

9a-27=180

add 27 on both sides

9a=209

divide by 9 on both sides

a=23

User Rohr Facu
by
3.7k points