Question

Prove that equilateral triangle every side is 60 degree

Answer 1

we know that sum of all angle in triangle is equal to 180°

and in equilateral triangle all angles are equal

let angle of equilateral triangle is "x"

then,

x+x+x=180°

》3x=180

》x=180/3

》x=60°

hence proved that in equilateral triangle all angles are equal to 60°