CBSE Class 9 Answered
In figure, P, Q, R and S are four points on
a circle. PR and QS intersects at point O. If QOR
= 130o and ORS
= 20o. Find QPR.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
In QSR,
QOR + ROS = 180o (linear pair)
ROS = 50o
In ROS,
ROS + OSR + SRO = 180o (Angle sum property)
50o + OSR + 20o = 180o
OSR = 110o
Now, QPR = OSR (Angles obtained in same segment by same chord QR)
Answered by | 04 Jun, 2014, 03:23: PM
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