Question
Draw an angle of measure $147^\circ $ and construct its bisector.
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Answer
The below given steps will be followed to construct an angle of $147^\circ $ measure and its bisector.
$1.$Draw a line $l $ and mark a point $O$ on it. Place the centre of the protractor at point $O$ and the zero edge along line $l.$
$2.$Mark a point $A$ at $147^\circ .$ Join $OA. OA$ is the required ray making $147^\circ $ with line $l.$
$3.$Draw an arc of convenient radius, while taking point $O$ as centre. Let it intersect both rays of angle $147^\circ $ at point $A$ and $B.$
$4.$Taking $A$ and $B$ as centres, draw arcs of radius more than $\frac{1}{2}AB$ in the interior of angle of $147^\circ .$ Let those intersect each other at $C.$ Join $OC.$
$OC$ is the required bisector of $147^\circ $ angle.
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Match the following:
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$(a)$
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Area of a rectangle
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$(i)$
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$\pi\text{r}^2$
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$(b)$
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Area of a square
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$(ii)$
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$4 \times $ side
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$(c)$
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Perimeter of a rectangle
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$(iii)$
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$l \times b$
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$(d)$
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Perimeter of a square
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$(iv)$
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$(side)^2$
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$(e)$
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Area of a circle
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$(v)$
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$2(l + b)$
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