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A hallow cylinder of radius 5 cm takes six turns about its axis on a horizontal plane and there by covers a distance which is 6π tines its length.what is the area of the curved surface of the cylinder |
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Answer» Step-by-step EXPLANATION: given, r=5cm distance COVERED by cylinder=6πl area covered in 6 turns=6×2πr hence, 12πr=6πl 12r=6l l=12×5/6. (r=5) l=10cm curved surface area of cylinder=2πrh 2×3.14×5×10. (l=h) 314cm^2 |
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