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Proof of theorem- angles subtended by the same arc in the same segment are equal. Please answer soon, need it urgently, exam tom!!!!



theorem ; Angle subtended by an arc in the segment are equal.

Given:  'o' is the centre of the circle . AB an arc. angle c and angle d are the angles in the same segment with respect to AB.
R.T.P. : angle c =angle d 
Construction: join OA and OB
PROOF: angle AOB =2angle ACB........(1)
              angle AOB= 2 angle ADB......(2)

                from equation 1,2 
                2 angle ACB= 2 angleADB
                THERFORE angle acb =adb 
                          hence angle C = angle D
0 0 0
Thanxx a lott for ur help!! Truly appreciated!!;)
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