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(A)Complete any two out of three activites :(##NVT_21_MAT_P2_X_C09_E02_010_Q01.png" width="80%"> In the figure , segments BC and BA are tangents . Points C and A are the points C and A are the points of contact . O is the centre of the circle . Complete the following activity to prove segOD is the perpendicular bisector of seg AC. Proof : OC = OA ...squareBC = square... (Tangentsegmentsdrawn from an external point to the circle are equal . ):.points O and B aresquarefrom the points A andC of the chord AC:.by perpendiculr bisector theorem,seg OB is the squareof seg AC i.e seg OD is the perpendicularbisector of seg AC(O-D_B) |
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