7.
3. A hollow cylindrical pipe is 28 m long. Its inner and
outer diameters are 6 cm and 12 cm, respectively.
cal Find the volume of the metal used in making the
nal
pipe.
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7.
3. A hollow cylindrical pipe is 28 m long. Its inner and
outer diameters are 6 cm and 12 cm, respectively.
cal Find the volume of the metal used in making the
nal
pipe.
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Answer:
4224 cm³ is the answer of the question
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