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Byju's Answer
Standard VIII
Mathematics
Surface Area of a Cube
Find the surf...
Question
Find the surface area of a cube whose edge is
(i) 1.2 m
(ii) 27 cm
(iii) 3 cm
(iv) 6 m
(v) 2.1 m
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Solution
(
i
)
Edge
of
the
a
cube
=
1
.
2
m
∴
Surface
area
of
the
cube
=
6
×
(
side
)
2
=
6
×
(
1
.
2
)
2
=
6
×
1
.
44
=
8
.
64
m
2
.
(
ii
)
Edge
of
the
a
cube
=
27
cm
∴
Surface
area
of
the
cube
=
6
×
(
side
)
2
=
6
×
(
27
)
2
=
6
×
729
=
4374
cm
2
(
iii
)
Edge
of
the
a
cube
=
3
cm
∴
Surface
area
of
the
cube
=
6
×
(
side
)
2
=
6
×
(
3
)
2
=
6
×
9
=
54
cm
2
(
iv
)
Edge
of
the
a
cube
=
6
m
∴
Surface
area
of
the
cube
=
6
×
(
side
)
2
=
6
×
(
6
)
2
=
6
×
36
=
216
m
2
(
v
)
Edge
of
the
a
cube
=
2
.
1
m
∴
Surface
area
of
the
cube
=
6
×
(
side
)
2
=
6
×
(
2
.
1
)
2
=
6
×
4
.
41
=
26
.
46
m
2
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