Final answer:
The angle bisector should be constructed in an isosceles triangle with congruent base angles.
Step-by-step explanation:
The answer to the question is B) Angle bisector.
To construct the angle bisector of ∠PRQ in the isosceles triangle ∆PRQ, follow these steps:
- Draw the triangle ∆PRQ with ∠P ≅ ∠Q.
- Use a compass to find the midpoint of the side PQ and mark it as M.
- Draw a line from vertex R to the midpoint M, creating the bisector of ∠PRQ.
The line RM is the angle bisector of ∠PRQ.