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Riddhima Bhanja from presidium sector57, Gurgaon

Subject :IMO Class : Class 5

UO and UT are opposite rays. What is the measure of ∠RUN?

A80
B100
C125
D140

please explain

Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The angle OUT is of 180 degrees because it is a straight line. Hence, the angle RUN will be X+23=180-(32+23)=125.