Construct a circle with radius 4.2 cm. Draw a radius of this circle.

Construct a circle with radius 3.8 cm . Draw two diameters of this circle. Join the end points of the two diameters. What figure is obtained ?

Construct a circle with centre O and radius 4 cm.

Draw a circle of radius 4 cm. Draw pair of tangents to this circle which are inclined to each other at 75^(@).

Draw a circle of radius 4.5 cm. Draw two tangents to this circle so that the angle between the tangents is 60^(@) .

A circle has diameter 20 cm. What is the radius of the circle?

Draw a circle of radius 2.5 cm. Draw a tangent to the circle making an angle of 45^(@) with a line passing through the centre.

Using ruler and compasses only: draw a circle of radius 4cm. Produce AB, a diameter of this circle, upto point X so that BX= 4cm. Construct a circle to touch AB at X and to touch the circle, drawn earlier, externally.

Take a point O on the plane of the paper. With O as centre draw a circle of radius 3 cm. Take a point P on this circle and draw a tangent at P .

A circle has diameter 16 cm . What is the radius of the circle ?

In two concentric circles, a chord of length 24cm of larger circle becomes a tangent to the smaller circle whose radius is 5cm. Find the radius of the larger circle.