Question

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Answer 1

If all sides are equal then it is equilateral triangle then each angle is equal to 60

Answer 2

60 degrees.

Because all of the sides are equal and thus the angles are also equal.

Algebraic Solution:
Let us write the measure of the angle equal to x.
x+x+x=180 Because the measure of the angles are equal.
3x=180 Divide three by both sides.
x=60.

Hope this helps.

Answer 3

@Sheradon.burkett Welcome!