Construct a pair of tangents PQ and PR to a circle of radius 4cm from a point
P outside the circle 8cm away from the centre. Measure PQ and PR.
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Draw a line segment OP = 8 cm 2. Taking O as centre and another radius 4 cm, draw a circle. 3. Taking OP as diameter draw, another circle which intersects the first circle at Q and R. 4. Join P to Q and P to R. On measuring, we get PQ = PR = 5 cm.
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