Question

show that the angle of an equilateral triangle are 60° each

Answer 1

sum of angle of triangle is 180 degree since all the angle are equal of equilateral triangle so the measure of each angle is 60 degree.

Answer 2

Let the angles of triangle is x each
we know that sum of angles of triangle is 180
then x+x+x=180
3x=180
so x=180/3=60
thus ,each angle of equilateral triangle are 60