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Mathematics
Surface Areas and Volumes
CBSE
Class 9
Mathematics
Class 9 - Mathematics
Surface Areas and Volumes
MCQ
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1.
Which is false?A metal pipe is 63 cm long. Its inner diameter is 4 cm and the diameter is 4.4 cm. Then,
a.
its inner curved surface area = 792 cm
2
b.
its outer curved surface area = 871.2 cm
2
c.
surface area of each end = 2.64 cm
2
d.
its total surface area = 1665.84 cm
2
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