A rectangular sheet of aluminium foil is 44cm long and 30cm wide. Find the radius of the cylinder made by rolling the sheet. answer btau paper chal rha ha
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Answer:
Correct option is B)
Given that,
Rectangular sheet of paper length l=44cm
Breadth b=20cm
According to the given question,
Breadth is same and Length is change into circumference,
So, circumference of circle=2πr
44=2πr
r= 22×2/44×7
r=7cm
Then , volume of cylinder
=πr^2
= 7/22 ×7×7×20
=440×7
=3080cm^3
Hence, this is the answer.
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