Question

prove that measure of each angle 0f an equilateral triangle is 60°

Answer 1

each triangle has been three sides and in equilateral triangle sides are equal according to theorem if in triangle two sides are equal then then angle opposite to it also equal we do this two times then the result is that x+x+x=180
3x=180
x=180/3
x=60

Answer 2

Let an angle be x

Angles in equilateral triangle are equal

Sum of the Angels in an equilateral triangle is 180

X+X+X = 180
3X =180
X = 180 /3
= 60
Therefore, each angle in a equilateral triangle is 60