It's called an "equilateral" triangle.
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If all sides of a triangle are of equal length, then all the angles are the same. The sum of the angles of a triangle is 180 degrees. If all 3 angles are the same, divide 180 by 3 = 60 degree angles.
It is a triangle whose 3 sides are equal in length and its 3 interior angles each measure 60 degrees
No triangle has two parallel sides.None but it does have 2 sides of equal length and 2 angles of equal measure.
A triangle with no equal sides and no equal angles is called a scalene triangle. In contrast, a triangle with equal sides and equal angles is called an equilateral triangle. A triangle with two equal sides and two equal angles is an isosceles triangle.
An isosceles triangle has 2 equal sides and 2 equal angles.