Question

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

Explanation:

Step1: Recall triangle side - classification definitions

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

Step2: Analyze the given triangle

The triangle in the image has two angles marked as equal. In a triangle, equal angles correspond to equal - length sides (by the converse of the base - angles theorem). Since it has two sides equal (and not all three, as it is not marked as having all angles equal), it is isosceles but not equilateral.

Answer:

isosceles but not equilateral