Question

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

Explanation:

Step1: Recall triangle side - classification definitions

• An equilateral triangle has all three sides equal.
• A scalene triangle has all three sides of different lengths.
• An isosceles triangle has at least two sides equal.

Step2: Analyze the given triangle

The triangle in the image has marks indicating that all three sides are equal (the red tick - marks on each side show congruency).

Answer:

equilateral