Question

1. select the correct answer.

an isosceles triangle has at least ____ congruent sides.
twotwo
interiorinterior
exteriorexterior
directlydirectly

Explanation:

An isosceles triangle is defined as a triangle with at least two congruent (equal - length) sides. The other options: 'interior' and 'exterior' refer to angles or regions related to a triangle, not the number of congruent sides. 'Directly' is an adverb that does not pertain to the number of congruent sides of a triangle.

Answer:

two