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Construction 2

Construction 1. To construct a tangent to a circle at a point P on it without using the centre of the circle.

Procedure: -

  1. A chord PQ through P is drawn.
  2. Any point R is taken on the major arc PQ. PR and QR are joined.
  3. Equal to is constructed.
    PX is required tangent to the circle at P.

Construction 2. To construct a tangent to circle from a point P outside the circle using its centre O.

Procedure:-

  1. OP is joined and is bisected at M.
  2. Taking M as centre and MO as radius a semicircle is drawn which intersect the given circle at Q.
  3. PQ is the required tangent from P to the circle.

 


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