Question
Using protractor, draw a right angle. Bisect it to get an angle of measure $45^\circ .$
✓
Answer
We know that a right angle is of $90^\circ .$
Draw a ray $OA.$
With the help of a protractor, draw an $\angle\text{AOB}$ of 9$0^\circ .$
With centre at $O$ and a convenient radius, draw an arc cutting sides $OA$ and $OB$ at $P$ and $Q,$ respectively.
With centre at $P$ and radius more than half of $PQ,$ draw an arc.
With the same radius and centre at $Q,$ draw another arc intersecting the previous arc at $R.$
Join O $a$nd $R$ and extend it to $X.$
$\angle\text{AOX}$ is the required angle of $45^\circ .$
$\angle\text{AOB}=90^{\circ}$
$\angle\text{AOX}=45^{\circ}$
Draw a ray $OA.$
With the help of a protractor, draw an $\angle\text{AOB}$ of 9$0^\circ .$
With centre at $O$ and a convenient radius, draw an arc cutting sides $OA$ and $OB$ at $P$ and $Q,$ respectively.
With centre at $P$ and radius more than half of $PQ,$ draw an arc.
With the same radius and centre at $Q,$ draw another arc intersecting the previous arc at $R.$
Join O $a$nd $R$ and extend it to $X.$
$\angle\text{AOX}$ is the required angle of $45^\circ .$
$\angle\text{AOB}=90^{\circ}$
$\angle\text{AOX}=45^{\circ}$
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