Question

show that angles of equilateral triangle are 60° each

Answer 1

We know that all angles of equilateral triangle are equal 
let angle = x

so acc to angle sum property 
x + x + x = 180
3x = 180 
x = 60

 so each angle of equilateral triangle is 60

Answer 2

Let each angle be x .
we know that the sum of all angles of triangle is 180 degree. ( Angle sum Property)
so, x+x+x =180 degree
therefore 3x= 180
x =180/3
x =60
hence it is proved that each angle of triangle is 60 degree.
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