13 The thickness of a hollow metallic cylinder is 2 cm. It is 35 cm long and its inner radius is 12 cm.
find the volume of metal required to make the cylinder.
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Answer:
answer is 5720
Step-by-step explanation:
volume of metal required=
volume of outer cylinder - volume of inner
= π(14)²*35 - π(12)²*35
= π*35 {(14)²-(12)²}
=22/7 *35 {26*2}
=22*5*26*2
=5720
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