Draw rough diagrams of two angles such that they have one ray in common.

Write the number of acute angles in the given figure:

Write the number of reflex angles in the given figure:

$O$ is the centre of the circle.

Points _____, _____, _____, _____, _____ and _____ are on the circle.

$O$ is the centre of the circle.

_____ is a sector of a circle.

$\mathrm{O}$ is the centre of the circle.

$\mathrm{AO}=\mathrm{\_\_\_\_\_}$

$\mathrm{O}$ is the centre of the circle.

_____ is the longest chord of a circle.(Mention the longest chord in the figure)

$\mathrm{O}$ is the centre of the circle.

_____ is a segment of a circle.

$\mathrm{O}$ is the centre of the circle.

$\stackrel{⏜}{\mathrm{AEB}}$ is a _____ of a circle.