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Byju's Answer
Standard VI
Mathematics
Area of Rectangle
The perimeter...
Question
The perimeter of a floor of a room is 30 m and its height is 3 m. Find the area of four walls of the room.
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Solution
Perimeter
of
the
floor
of
the
room
=
30
m
Height
of
the
oom
=
3
m
Perimeter
of
a
rectangle
=
2
×
(
length
+
breadth
)
=
30
m
So
,
area
of
the
four
walls
=
2
×
(
length
×
height
+
breadth
×
height
)
=
2
×
(
length
+
breadth
)
×
height
=
30
×
3
=
90
m
2
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