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a cylindrical light house of radius 3m and height 21 m to be painted outside leaving its roof at a rate of rs 50 per m square find total cost of painting |
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Answer» =rs. 19800 Step-by-step EXPLANATION: csa =2πrh =2*22*3*3 =44*9 =396m square cost =396*50 =rs. 19800 |
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