Answer:
20
Step-by-step explanation:
All of its side are equal so it is an equilateral triangle. And as we all know an Equilateral triangle has 3 equal angles.
So based on this we can solve it using algebra,
[tex]3x + 3x + 3x = 180[/tex]
So using this we can find the value for x
[tex]9x = 180 \\ x = \frac{180}{9} \\ x = 20[/tex]
This is your answer hope it helps :)
