Suppose you are given a circle. Give a construction to find its centre.

Suppose you ar given a circle. Give a construction to find its centre.

Suppose you are given a circle. Describe a method by which you can find the centre of this circle.

How can you draw the tangent to a circle at a given point when the centre of the circle is not known?

Suppose you know the area of a square. How can you find its perimeter?

Suppose you know the perimeter of a square. How can you find its area?

Find the radius of the circle (xcosalpha+ysinalpha-a)^2+(xsinalpha-ycosalpha-b)^2=k^2,ifalpha varies, the locus of its centre is again a circle. Also, find its centre and radius.

Construct a circle with centre M and radius 4 cm

The length of the tangent to a circle from a point 17 cm from its centre is 8 cm . Find the radius of the circle .

Construct a circle with centre O and radius 4 cm.