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Byju's Answer
Standard VII
Mathematics
Area of a Circle
A wire is in ...
Question
A wire is in shape of a circle of radius 10 cm, it is rebent to form a square. Find the side of the square so formed.
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Solution
Let
r
be
the
radius
of
the
wire
when
it
is
bent
in
the
form
of
circle
.
Now
,
r
=
10
cm
Length
of
wire
=
2
πr
=
2
×
3
.
14
×
10
=
62
.
8
cm
When
the
same
wire
is
rebent
in
the
form
of
square
,
then
perimeter
of
square
=
62
.
8
cm
now
,
4
×
side
=
62
.
8
⇒
side
=
62
.
8
4
=
15
.
7
cm
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