In Fig. 8.46, ray OS stand on a line POQ. Ray OR and ray OT are angle bisectors of ∠POS and ∠ respectively. If ∠POS = x, find ∠ROT.
Given that,
Ray OS stand on a line POQ
Ray OR and OT are angle bisector of ∠POS and ∠SOQ respectively.
∠POS = x
∠POS + ∠QOS = 180o(Linear pair)
∠QOS = 180o – x
∠ROS = ∠POS (Given)
= x
∠ROS =
Similarly,
∠TOS = (90o - )
Therefore,
∠ROT = ∠ROS + ∠ROT
= + 90o -
= 90o
Therefore, ∠ROT = 90o