Question

prove that each angle of an equilateral triangle id 60º

Answer 1

Divide both sides by 3, you get x is equal to 60 degrees. So in anequilateral triangle, not only are they all the same angles, but they're all equal to exactly-- they're all 60 degreeangles.

Answer 2

Hey friend,
We know that the sides of equilateral triangle are equal.
Now let the sides be x
So,

x + x + x = 180°

3x = 180°
$x = \frac{180}{3} \\ \\ = x = 60$

Hope this helps!!!

@Mahak24

Thanks...
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