Question

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Answer 1

a) Vertex = R

Arms = RQ , RP

b) Vertex = M

Arms = ML , MN

c) Vertex = X

Arms = XY , XZ

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Answer 2

Answer:

(i) vertex angle R

arms RP AND RQ

(ii) vertex angle AM

ARMS ML AND MN

(iii) vertex angle Xbox

arms xy and xz