Question

question 9 (multiple choice worth 4 points) (04.01r lc) if triangle jkl is classified as isosceles, which statement is true? at least two sides are congruent. two sides are perpendicular. all three sides are congruent. two sides are parallel.

Explanation:

An isosceles triangle is defined as a triangle with at least two congruent (equal - length) sides. A triangle with two perpendicular sides is a right - triangle (not necessarily isosceles). A triangle with all three sides congruent is an equilateral triangle (a special case of isosceles, but the general definition of isosceles only requires at least two). In a triangle, no two sides are parallel.

Answer:

At least two sides are congruent.