The circumference of the base of a cylindrical vessel is 132cm and its height is 25cm. How many litres of water can it hold? (1000cm3=1l)
A
12.65l
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B
62.65l
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C
34.65l
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D
42.65l
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Solution
The correct option is B34.65l Let the base radius of the cylindrical vessel be rcm.
Then, circumference of the base of the cylindrical vessel=2πrcm
According to the question, 2πr=132 ⇒2×227×r=132 ⇒r=132×72×22=21cm Height of the cylindrical vessel, h=25cm ∴ Capacity of the cylindrical vessel =πr2h=227×(21)2×(25)cm3 =34650cm3=346501000l=34.65l Hence, the cylindrical vessel can hold 34.65l of water.