In the figure shown, the arms of angle AOB is/are
The point O
The ray OA
The ray OB
The rays OA and OB
Arms are the two rays intersecting each other to form an angle. Here the ray OA and OB are required arms of angle AOB
In the figure, rays OA, OB, OC, OD and OE have the common end point O. Show that ∠AOB+∠BOC+∠COD+∠DOE+∠EOA=360∘.
Let be two rays and let be a ray between and such that ∠AOX > ∠XOB.
Let be the bisector of ∠AOB. Prove that ∠AOX − ∠XOB = 2∠COX.