Question

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

Explanation:

Step1: Recall triangle side classifications

An isosceles triangle has at least two equal sides, a scalene has all sides different, and an equilateral has all three equal.

Step2: Analyze the triangle's marks

The triangle has two sides with the same tick mark (indicating equality) and one side with a different mark. So two sides are equal, not all three.

Answer:

A. isosceles but not equilateral