A rectangular sheet of paper 66cmx20 cm is rolled along its length to form cylinder.find radius
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breadth of rectangular sheet=20cm
height if cylinder=length of rectangular sheet=66cm
radius =?
area of rectangular sheet=l×b
=66×20
=1320cm²
area of cylinder=area of rectangular sheet
2πrh=1320cm²
2×22/7×r×66=1320
44/7r×66=1320
414.85r=1320
r=1320/414.85
r=3.18cm
hope it helps you enough my friend, happy New year
height if cylinder=length of rectangular sheet=66cm
radius =?
area of rectangular sheet=l×b
=66×20
=1320cm²
area of cylinder=area of rectangular sheet
2πrh=1320cm²
2×22/7×r×66=1320
44/7r×66=1320
414.85r=1320
r=1320/414.85
r=3.18cm
hope it helps you enough my friend, happy New year
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