Respuesta :

Greetings!

Answer:

x = 20

Step-by-step explanation:

In an  equilateral triangle, everything is the same; line length and angles. Each angle in an  equilateral triangle is:

180 ÷ 3 = 60

So 3x = 60

Divide both sides by 3 to get x:

x = 20


Hope this helps!