There are different kinds of triangles. The options that could be used as part of the proof that B = C are;
- ≅ because of the Symmetric Property
- ≅ because of the definition of a midpoint
- ≅ because of the definition of an isosceles triangle
- ∠ ≅ ∠ because corresponding parts of congruent triangles are congruent.
Isosceles triangles is known to have at least two congruent sides and also at least two congruent angles.
The congruent sides is referred to as legs that create the vertex angle. The other two congruent angles are known to be the base angles.
See full question below (using the image attached)
A student wants to prove that the base angles of an isosceles triangle are congruent. The student draws isosceles triangle ABC with base angles B and C.
Point M is drawn as the midpoint of BC.
Which of the following could be used as part of the proof that B = C? Select all that apply