What length of solid cylinder 2 cm in diameter must be taken to cast i – McqOptions

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1.	What length of solid cylinder 2 cm in diameter must be taken to cast into a hollow cylinder of external diameter 12 cm, 0.25 cm thick and 15 cm long ?
A.	2.3215 cm
B.	4.0123 cm
C.	4.0625 cm
D.	4.6023 cm
Answer» D. 4.6023 cm

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