A cylinder of curved surface area 1250msquare is formed from rectangular mettalic sheet find the dimensions of the rectangular sheet if its length is double its breadth
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Let the radius be r m
then height will be 2r m
We know that CSA of cylinder =2πrh
1250=2×22/7×2r×r
1250=44/7×2r²
1250×7/44=2r²
200=2r² [(1250×7)/44=199, take estimate as 200]
r²=200/2
r²=100
r=√100
r=10m
2r=20m
∴ the dimensions are 20 by 10 m.
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then height will be 2r m
We know that CSA of cylinder =2πrh
1250=2×22/7×2r×r
1250=44/7×2r²
1250×7/44=2r²
200=2r² [(1250×7)/44=199, take estimate as 200]
r²=200/2
r²=100
r=√100
r=10m
2r=20m
∴ the dimensions are 20 by 10 m.
pls mark as brainliest
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