# CBSE Class 9 Answered

**I need answer y**

Asked by class9abhinava.ydws | 30 Sep, 2020, 07:15: PM

Expert Answer

Extend RO till T

Now, ∠ROS + ∠SOT = 180

^{o}... (Linear pair of angles) (i)Also, ∠ROQ + ∠QOP + ∠POT = 180

^{o}... (Linear pair of angles) (ii)Adding (i) and (ii), we get

∠ROS + ∠SOT + ∠ROQ + ∠QOP + ∠POT = 180

^{o}+ 180^{o}∠ROS + ∠SOT + ∠POT + ∠ROQ + ∠QOP = 360

^{o}∠ROS + ∠SOP + ∠ROQ + ∠QOP = 360

^{o}
Answered by Renu Varma | 02 Oct, 2020, 07:52: PM

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