A rectangular sheet of paper length 42 cm and breath 16 cm is rolled along its length and cylinder is formed. Find the volume of the cylinder.
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Answer:
Since a rectangle is rolled along length then circumference of circle is equal to length of rectangle and breadth equals to height.
=) 2*pi*r = 42cm
=) 2*22/7 * r = 42cm
=) r = 42*7 / 2*22
=) r = 147/22 cm
Since Volume of cylinder = pi* r^2*h
= 22/7 * 147/22 * 147/22 * 16 cm^3
= 2245.09 cm^3.
Hope it's helpful to u.
Step-by-step explanation:
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Step-by-step explanation:
length length of paper 42 centimetre
bredth paper 16 centimetre
consider breadth of paper is equal to the perimeter of a circle
16=2πr
r= 8/π
volume of cylinder = πr2h
= π x 8/π x 8/π x 42
= 2688/π cm3
= 244.36 cm3
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