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Answer:

Step-by-step explanation:

construction : join QS

TAKING the concept of linear pair angle Q = 180 - 110 = 70

s = 180-130=50

now in triangle qsr (angle sum PROPERTY of the triangle)

70 + 50+ x = 180 ( taking unknown as x)

120 + x = 180

x = 180 - 120 = 60

angle R = 60 degree

hope it HELPED you :)



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