The lenght of the tangent from a point a at the distance 5 cm from the centre of the circle is 4 cm. Find the radius if the circle
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Ans:-. Steps of construction. 1. Draw a concentric circle or radius 4cm and 6cm of centre o.
2.Find perpendicular bisector of OB.i.e,P.
3.from point P draw a circle of r=Op
4.The circle of radius OP intersect the circle of r=4cm.i,e -. M & N.
5. Join BM & BN .
In this ay we find the tangen 9f the concentric circle of rasiya 4 cm.
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