Question

Construct a circle of $3.5$ cm radius. Take a point $P$ outside the circle and draw a tangent of $5$ cm to the circle.

Answer 1

Steps of construction :

1.Take a point O as center and with radius 3.5 cm ,draw a circle.

2.Mark a point P outside the circle such that OP=5 cm.join O to P.

3.Draw a perpendicular bisector of OP that cuts OP at M.

4.With M as a center and radius MO (or MP),draw a circle cutting the first circle at A and B.

5.Join P to A and P to B

Then PA and PB are the required two tangents.