what is always true about the angles of an isosceles triangle?\no all three angles are congruent.\no at…

Brief Explanations:

An isosceles triangle has two equal - length sides. By the Isosceles Triangle Theorem, the angles opposite the equal sides (base angles) are congruent. So, at least two of its angles are congruent. It is not necessary that all three angles are congruent (that's an equilateral triangle), the vertex angle doesn't have to be a right - angle or obtuse.

Answer:

At least two of the angles are congruent.