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24 * 42 एमएम आपके दो कागज लेकर लंबाई एवं चौड़ाई की दिशा में मार कर दो अलग-अलग बेलन बनाई है दोनों में किस का वक्र पृष्ठ एवं आयतन अधिक होगा |
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Answer» Make cylinder by folding each side To Find : Which one has more Curved surface area , volume Solution: paper 24 cm * 42 cm 24 cm is height and 42 cm is CIRCUMFERENCE of base 2πr = 42 h = 24 cm Curved surface area =2πrh = 42 * 24 cm² 2πr = 42 => 2(π)r = 42 => r = 21/π Volume = πr²h =π( 21/π)²24 = 10584/π cm³ paper 24 cm * 42 cm 42 cm is height and 24 cm is circumference of base 2πr = 24 h = 42 cm Curved surface area =2πrh = 24 *42 cm² Curved surface area of both is same 2πr = 24 = r = 12/π
Volume = πr²h = π( 12/π)²42 = 6048/π cm³ 10584/π > 6048/π Volume of this CASE is less Learn More: .A rectangular paper is 10 cm wide and 12 pie cm long and on ... A person has a rectangular sheet of metal. He has to make ... The capacity of a closed cylindrical VESSEL of height 2 m is 30.8 litres ... |
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