Question

classify this triangle by its sides. equilateral isosceles but not equilateral scalene

Explanation:

Step1: Recall triangle - side classification rules

An equilateral triangle has 3 equal - length sides. An isosceles triangle has at least 2 equal - length sides. A scalene triangle has no equal - length sides.

Step2: Observe the triangle

The red marks on the angles indicate that all three angles are equal. In a triangle, if all angles are equal, then all sides are equal.

Answer:

equilateral