Question

Class:
ons
Notes/Examples
Parts of an Isosceles Triangle:
• The angle where the legs intersect is called the
• The side opposite the vertex angle is called the
• The angles along the base are called

Answer 1

Answer:

1. Vertex angle.
2. Base.
3. Base angles.

Step-by-step explanation:

Using the Base Angles Theorem to define the terms relating to an isoceles triangle:

• The Base Angles Theorem states that if the two sides of a triangle are congruent, then it means that the angles opposite to those sides are also congruent.

An isoceles triangle has two congruent sides, referred to as the legs. As the legs of a triangle are slanted, they will intersect at a point known as the vertex angle.  The side that is opposite to the vertex angle is the base of the triangle.

Therefore, the following are the missing terms in the given problem:

1. The angle where the legs intersect is called the vertex angle.
2. The side opposite the vertex angle is called the base.
3. The angles along the base are called base angles.