Question

Draw concentric circle for the radii measuring 4 cm and 6 cm. Find out the width of circular ring.

Answer 1

Step 1 - Draw a circle with radius $r=4$ cm and name the centre as $O$.

Step 2- Taking $O$ as the centre, draw another circle of radius $R=6$ cm.

Then, the figure results into concentric circles with radius $6$ and $4$ cm.

Then width of circular ring $=R-r=6-4=2$ cm