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Byju's Answer
Standard IX
Mathematics
Surface area of a sphere
Find the curv...
Question
Find the curved surface area of a right circular cone of height
15
cm and base diameter
16
cm.
A
620
π
c
m
2
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B
136
π
c
m
2
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C
220
π
c
m
2
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D
None of these
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Solution
The correct option is
B
136
π
c
m
2
R.E.F image
l
2
=
√
8
2
+
15
2
=
17
c
m
C
.
S
.
A
=
π
r
l
=
136
π
c
m
2
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Similar questions
Q.
The curved surface area of a right circular cone of height
15
cm and base diameter
16
cm is __________.
Q.
The curved surface area of a right circular cone of height 15 cm and base diameter 16 cm is
(a) 60π cm
2
(b) 68π cm
2
(c) 120π cm
2
(d) 136π cm
2