Question

select the best classification for the triangle by its sides. isosceles acute scalene equilateral

Explanation:

Step1: Recall triangle - side classification rules

An isosceles triangle has two equal - length sides, an equilateral triangle has three equal - length sides, and a scalene triangle has three sides of different lengths. Acute is a classification by angles, not sides.

Step2: Analyze given information

There is no information about the side - lengths. But since no equal - side information is given, we assume different side - lengths.

Answer:

C. Scalene