Draw a circle and two lines parallel to a give such that one is a tangent and the other , a secant to the circle .

Draw a circle and a secant PQ of the circle on a paper as shown below. Draw various lines parallel to the secant on both sides of it . What happens to the length of chord coming closer to the centre of the circle ?

We can draw ………… tangents to a given circle .

How can you prove the converse of the above theorem. "If a line in the plane of a circle is perpendicular to the radius at its end point on the circle , then the line is tangent to the circle " .

The number of tangents at one point of a circle is …..

Draw a circle of radius 5 cm . From a point 8 cm away from its centre , construct a pair of tangents to the circle . Find the lengths of tangents .

Draw a circle of diameter 6 cm from a point 5 cm away from its centre . Construct the pair of tangents to the circle and measure their length .

Draw a circle of radius 6 cm. From a point 10 cm away from its centre, construct the pair of tangents to the circle and measure their lengths.

Draw a circle with any radius . Draw four tangents at different points . How many tangents can you draw to this circle ?

The number of parallel tangents to a circle with a given tangent is ……

A circle may have ........ parallel tangents utmost.