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A hollow cylindrical tube open at both ends is made of iron 3 cm thick. if the external diameter be 56 cm n the length of the tube be 182 cm, find the

number of cubic cm in it.


Volume of a hollow cylinder= πh(R sq.-r sq.)
R=external diameter=56cm
r=internal diameter=external diameter - thickness=56-3=53cm

2 5 2
u r sure abt the ans ryt...
yup n pls edit your answer
ya sure
maybe i did a mistake in calculation but the formula is ryty
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