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Question

In figure, KXM is a tangent to the circumcircle C of XYZ such that LMYZ. Show that XY=XZ
1178100_cff7520498544774925193332f09c460.png

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Solution

Since Lm||yz
So, LXY=XYZ (alternate angles)
and MXZ=XZY (alternate angles)
Now,
Since Angle between tangent and chord is equal to angle made by chord in the alternate segment.
So, LXY=XZY
and So, XYZ=XZY
hence,
XY=XZ [ Sides opposite to the equal angles are also equal.]

1367966_1178100_ans_b6c8550331ed4fbc81f198f3d4533005.png

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