CBSE BOARD X, asked by harmeet6595, 1 year ago

Dimensions of a cuboid are 4.4*2.6*1.0m. It is melted into hollow cylinderical pipe of 30cm inner radius and thickness 5cm. Find the length of the pipe

Answers

Answered by ISHITADEY
0
Volume of the cylinder =4.4* 2.6* 1 cu m
11.44 cu. m.
inner radius = 30 cm
outer radius = 30+5 = 35 cm = 35/100 m
let the length of the pipe be h m
ATQ,

11.44 = 22/7 *h* [(35/100)^2 - (30/100)^2]
=> h= 11.44 * 7 / 22 / 0.0325 = 112 m
.. hope its right..
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