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A vessel of conical shape of radius 14cm and slanted height 20cm is to be coloured. What is the cost of painting at a rate of ₹2/cm2? (Take π = 227\frac{22}{7})

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MCQs on surface areas and volumes, surface areas of cube, cuboid and sphere, surface areas of right circular cylinder and cone, cuboid and cylinder volumes, volumes of right circular cone and sphere.


A vessel of conical shape of radius 14cm and slanted height 20cm is to be coloured. What is the cost of painting at a rate of ₹2/cm<sup>2</sup>? (Take π = <span class='MathJax_Preview' style=''></span><span class='MathJax' id='MathJax-Element-7-Frame' tabindex='0' style=''><nobr><span class='math' id='MathJax-Span-31' style='width: 1.293em; display: inline-block;'><span style='display: inline-block; position: relative; width: 1.024em; height: 0px; font-size: 124%;'><span style='position: absolute; clip: rect(1.347em, 1001.02em, 2.96em, -999.997em); top: -2.363em; left: 0em;'><span class='mrow' id='MathJax-Span-32'><span class='mfrac' id='MathJax-Span-33'><span style='display: inline-block; position: relative; width: 0.809em; height: 0px; margin-right: 0.11em; margin-left: 0.11em;'><span style='position: absolute; clip: rect(3.336em, 1000.65em, 4.142em, -999.997em); top: -4.406em; left: 50%; margin-left: -0.374em;'><span class='mn' id='MathJax-Span-34' style='font-size: 70.7%; font-family: MathJax_Main;'>22</span><span style='display: inline-block; width: 0px; height: 3.981em;'></span></span><span style='position: absolute; clip: rect(3.336em, 1000.33em, 4.142em, -999.997em); top: -3.599em; left: 50%; margin-left: -0.159em;'><span class='mn' id='MathJax-Span-35' style='font-size: 70.7%; font-family: MathJax_Main;'>7</span><span style='display: inline-block; width: 0px; height: 3.981em;'></span></span><span style='position: absolute; clip: rect(0.863em, 1000.81em, 1.239em, -999.997em); top: -1.288em; left: 0em;'><span style='display: inline-block; overflow: hidden; vertical-align: 0em; border-top: 1.3px solid; width: 0.809em; height: 0px;'></span><span style='display: inline-block; width: 0px; height: 1.078em;'></span></span></span></span></span><span style='display: inline-block; width: 0px; height: 2.368em;'></span></span></span><span style='display: inline-block; overflow: hidden; vertical-align: -0.597em; border-left: 0px solid; width: 0px; height: 1.737em;'></span></span></nobr></span><script type='math/tex' id='MathJax-Element-7'>\frac{22}{7}</script>)






 
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