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Byju's Answer
Standard VII
Mathematics
Perimeter of a Square
If the perime...
Question
If the perimeter of a square is
40
c
m
. What is its area?
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Solution
Let the side of the square be
l
.
Then its area =
l
2
and perimeter is
4
l
.
Now according to the problem,
4
l
=
40
or,
l
=
10
.
Then its area
=
10
2
=
100
cm
2
.
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