IN A CYCLIC QUADRILATERAL PQRS , IF ANGLE P - ANGLE R = 50 DEGREE , FIND ANGLE P

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The sum of angle P and angle R is 180o.[Property of cyclic quadrilateral]

P+R = 180

P = 180-R -------------------------1

P-R = 50

P = 50+R ---------------2

180-R = 50 + R

2R = 180-50 = 130

R = 65o

as we know,

P+R = 180

P+ 65 = 180

P= 180-65

P = 115o ans.

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