All triangles have internal angles summing to 180 degrees. An equilateral triangle has three equal angles, each of which is 180/3 = 60 degrees.
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180 degrees
Yes, actually it has to be. The only type of triangle with even sides is an equilateral triangle, but all of the angles of an equilateral are 60 degrees, because everything is equal and 180(total degrees within a triangle)/3(number of angles)=60(degrees per angle of an equilateral).
Each of the three angles is 60 degrees, resulting in a total of 180.
An equilateral triangle can't be a right triangle since an equilateral triangle has all 60° angles, which are NOT right angles [measuring 90°]. If a triangle is a right triangle, then it has a right angle!
Because the total sum of angles in any triangle adds up to 180 degrees.