Respuesta :

watsonultra2

Answer:

x=4

Step-by-step explanation:

In a equilateral triangle, every angle has a measure of:

[tex] \frac{180}{3} = 60[/tex]

so:

[tex]10x + 20 = 60 \\ 10x = 40 \\ x = 4[/tex]

Otras preguntas