pa help po sana mga mathematician :)

1.) In angle MRC, which letter represents the vertex?
↬ The vertex is letter R, the vertex should always be in the middle between the letters.
2.) What are the sides of angle PBL?
↬ The sides are P and L, since the vertex is R, the letters between R are the sides of angle PBL.
Give the different names for the angle with vertex A:
↬ BAD is not an angle because B and D is a line segment and not a ray.
Give three angles which should not be named only using a single capital letter:
↬ An angle can also be named by it's vertex therefore the answers are;