A rectangular sheet of paper 40cm×22cm is roled to form a hollow cylinder of height 40cm fint the radius of the cylinder
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h = 40cm then take
2pie r h then it will be
2×22/7×40×r
44/7×40×r
176/7×r
25.14 will be the answer i hope so
2pie r h then it will be
2×22/7×40×r
44/7×40×r
176/7×r
25.14 will be the answer i hope so
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