Q18 of 20 Page 11

Draw two concentric circles of radius 3 cm and 5 cm. Taking a point on the outer circle, construct the pair of tangents to the inner circle.

Steps of construction:


1. Draw a circle with radius 3 cm and centre O.



2. Draw another circle with radius 5 cm and same centre O. O’


3. Take a point P on the circumference of larger circle and join O to p.



4. Taking OP as diameter draw another circle which intersects the smallest circle at A and B.


5. Join A to P and B to P.


Hence AP and BP are the required tangents.



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