Question

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

Explanation:

Step1: Recall triangle 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 triangle

Since two angles are marked as equal (in a triangle, equal angles correspond to equal - length sides), the triangle has two sides equal. And it is not an equilateral triangle (as all three angles are not equal).

Answer:

Isosceles but not equilateral