Draw a circle with radius 2.8cm and draw a tangent at any point on the circle.

Draw a circle with radius 2.5cm and draw a tangent at any point on the circle.

Draw a circle with radius 2.7cm and draw a tangent at any point on the circle .

Draw a circle with radius 3.5cm and draw a tangent at any point on the circle.

Draw a circle with radius 3.1cm and draw a tangent at any point on the circle .

The locus of the mid-points of the chords of the circle of lines radiùs r which subtend an angle pi/4 at any point on the circumference of the circle is a concentric circle with radius equal to (a) (r)/(2) (b) (2r)/(3) (c) (r )/(sqrt(2)) (d) (r )/(sqrt(3))

Let PQ and RS be tangents at the extremities of one diameter PR of a circle of radius r. If PS and RQ intersect at a point X on the circumference of the circle, than (2r)/sqrt(PQ cdot RS) equals_____

Construct a circle of radius 2.5 cm. Take any point on the circle and draw a tangent to the circle at that point.

Construct a circle of radius 5 cm . Take a point at a distance of 6.2 cm from the centre of that circle. Also draw a tangent to that circle from that point.

Construct a circle of radius 4 cm. Take a point at a distance of 6 cm from the centre of that circle . Then construct a tangent from that point to the circle .