Question

Sum of all angle of triangle is 180

Answer 1

yes
its is 180
x1+x2+x3=180

Answer 2

Answer:

let the angle of triangle be x

1st angle =x

2nd angle =x

3rd angle = x

Step-by-step explanation:

x+x+x=180

3x=180

x=180/3

x=60.

each angle is 60° so it is a equilateral triangle.