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Byju's Answer
Standard VII
Mathematics
Perimeter of a Regular Polygon
A rectangular...
Question
A rectangular sheet of paper is
12
1
2
cm
long and
10
2
3
cm
wide. Find its perimeter.
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Solution
Perimeter of rectangle = 2(length + width)
2
×
12
1
2
+
10
2
3
=
2
×
(
12
×
2
)
+
1
2
+
(
10
×
3
)
+
2
3
=
2
×
(
25
×
3
)
+
(
32
×
2
)
6
=
2
×
139
6
=
139
3
cm
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