the radius of the base of a cone is 5cm and its height 12cm. find the total surface area and the volume of the cone. (take py=3.14)
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v=1/3πr²h=1/3×22/7×(5)²×12=314.28cm³.TSA=πr(l+r). l=√(12)²+(5)²=√169=13. solve it from formula. πr(l+r)
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