Question

a scalene triangle has______
all sides congruent 3 different angle names 3 congruent angles no congruent sides

Explanation:

A scalene triangle is defined by having no congruent sides. "All sides congruent" describes an equilateral triangle. "3 congruent angles" also refers to an equilateral triangle (since in a triangle, equal sides correspond to equal angles). "3 different angle names" is an incorrect and unclear description. The key characteristic of a scalene triangle is the absence of congruent sides.

Answer:

no congruent sides