Respuesta :
Answer:
No, it doesnt have at least 2 equal sides. it has exactly 2 equal sides
but
This is one of those “it depends on the textbook author” questions.
Some texts define an Isosceles triangle as a triangle with exactly two congruent sides. In this case a triangle with three congruent sides may only be classified as an Equilateral triangle, and not as an Isosceles triangle. In this definition Isosceles and Equilateral are mutually exclusive.
Other texts define an Isosceles triangle as a triangle with at least two congruent sides. In this case a triangle with three congruent sides may be classified as both an isosceles triangle and an equilateral triangle. In this definition Equilateral is a subset of Isosceles.
