Answer:
This is an equilateral triangle, which means all the sides are equal.
Hence, all three angles are the same.
[tex]3x=\frac{180}{3}[/tex]
[tex]3x=60[/tex]
Therefore,
[tex]x=20[/tex]
20
Step-by-step explanation:
3x+3x+60= 180
6x= 180-60
6x= 120
