Prove that angle p+q+r+s+t=180 degree Share with your friends Share 4 Neha Sethi answered this Dear student Consider triangle KPR,∠TKI=∠KPR+∠KRP [∴Exterior angle of △ is equal to sum of the opposite interior angles of a △]Similarly in △ISQ,∠TIK=∠ISQ+∠IQS [∴Exterior angle of △ is equal to sum of the opposite interior angles of a △]Mow, consider △TKI, by angle sum property of triangle ∠TKI+∠TIK+ITK=180°⇒∠KPR+∠KRP+∠ISQ+∠IQS+∠ITK=180°⇒∠P+∠R+∠S+∠Q+∠T=180°⇒∠P+∠Q+∠R+∠S+∠T=180°Hence proved Regards 6 View Full Answer Kavin answered this This is not defined -2 Apurva answered this i am sending 0 Aditya Akash Sahu answered this I do not know -3