how much metal sheet will be required to make a cone of height 4m and base radius 3m
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lateral surface area of cone =πrl
l^2=4^2+3^2=16+9=25
Therefore l =5
22/7*3*5=330/7=47.14m^2(approx)
l^2=4^2+3^2=16+9=25
Therefore l =5
22/7*3*5=330/7=47.14m^2(approx)
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