EXERCISE 14.1

Draw a circle of radius $3.2 \mathrm{c}\mathrm{m}.$

With the centre $\mathrm{O},$ draw two circles of radii $4 \mathrm{c}\mathrm{m}$ and $2.5 \mathrm{c}\mathrm{m}.$

Draw a circle and any two of its diameters. If you join the ends of these diameters, what is the figure obtained? What figure is obtained if the diameters are perpendicular to each other? How do you check your answer?

Draw any circle and mark points $\mathrm{A}$ such that $\mathrm{A}$ is on the circle.
 

Draw any circle and mark point $\mathrm{B}$ such that:

$\mathrm{B}$ is in the interior of the circle.

Draw any circle and mark points $\mathrm{C}$ such that: 

$\mathrm{C}$ is in the exterior of the circle.

Let $\mathrm{A}, \mathrm{B}$ be the centres of two circles of equal radii; draw them so that each one of them passes through the centre of the other. Let them intersect at $\mathrm{C}$ and $\mathrm{D}.$ Examine whether $\overline{\mathrm{AB}}$ and $\overline{\mathrm{CD}}$ are at right angles.