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Byju's Answer
Standard IX
Mathematics
Curved Surface area of a right circular cylinder
Find the tota...
Question
Find the total surface area of a cylinder with diameter of base
7
c
m
and height
40
c
m
.
A
1016
c
m
2
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B
880
c
m
2
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C
1540
c
m
2
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D
957
c
m
2
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Solution
The correct option is
D
957
c
m
2
we k.n.t total surface area of cylinder
=
2
π
r
(
r
+
h
)
.
Given
d
=
7
c
m
and
h
=
40
c
m
.
Total surface area
=
2
π
r
(
r
+
h
)
=
2
π
×
3.5
×
(
3.5
+
40
)
=
956.13
∴
T
.
S
.
A
=
957
c
m
2
.
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2
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