25 A quadrilateral ABCD in a circle with centre O is given Fig 9 31 B D 100 P Fig 9 31 What are the measures of x and y a x 40

Question

25 A quadrilateral ABCD in a circle with centre O is given Fig 9 31 B D 100 P Fig 9 31 What are the measures of x and y a x 40 and y 50 c x 80 and y 100 26 In Fig 9 32 ZCAB 45 ZDBC 55 then the value of ZDCB is b x 50 and y 40 d x 100 and y 80 CBSE

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