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CBSE Class 9 Answered

IN A QUADRILATERAL ABCD , bisectors of angle A and angle B intersect at O,such that angle AOB=75, then write the value of angle C+ angle D?
Asked by bharathkumar | 14 Nov, 2013, 10:47: AM
answered-by-expert Expert Answer
Angle AOB = 75 degrees ....(given)
 
Thus, Angle DOC = 1800 - 750 = 1050 (Vertically opposite angles)
Sum of angles of a triangle DOC = 1800
Thus,
Thus, Angle C + Angle D = 2100
Answered by Rashmi Khot | 14 Nov, 2013, 11:20: AM

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