Question

in figure pq is parallel to Rs .find the outer angle of verities Q and S



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Answer 1

since pq is parallel to rs, rq is a transversal  and angle r is 100 degree

therefore exterior angle Q. will also be 100 degree

therefore angle RQP is 180-100=80 degree.....linear pair

and exterior angle S is 60 degree....alt. int. angles

and angle RSP is 180-60=120degree------linear pair

Hope this will help you :)