Question

An/A ___ is a triangle that has (at least) two equal side lengths.

• A. equilateral triangle
• B. isosceles triangle
• C. obtuse triangle
• D. vertex angle

Answer 1

The correct option is B isosceles triangle

In an isosceles triangle, the two equal sides are called legs, and the remaining side is called the base. The angle opposite the base is called the vertex angle, and the point associated with that angle is called the apex. The two equal angles are called the isosceles angles.