An isosceles triangle has 3 sides 2 of which are congruent and 3 interior angles 2 of which are equal in size
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Equilateral triangles have three congruent sides and three congruent angles
No, none of the sides or angles are congruent in a scalene triangle. All three sides (and all three angles) are congruent only in an equilateral triangle.
There are three types of triangles. Equilateral triangles have three congruent sides and three sixty-degree angles. Isosceles triangles have two congruent sides and the angles opposite those two sides are also congruent. Scalene triangles have no congruent sides or angles.
An equilateral triangle.
A triangle