Question

Draw a circle of radius 4 cm. From a point 7 cm away from the centre of circle. Construct a pair of tangents to the circle.

Draw a circle of radius 4 cm and construct the pair of tangents to the circle from an external point, which is at a distance of 7 cm from its centre.

Answer 1

Steps of construction:

1. Draw a line segment OP = 7 cm.
2. Taking O as centre and 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.
   
   PQ and PR are required tangents.