Explanation
Surface area of a cube of side a is given by, S=6 a2
The side of cube is given , a=27 cm
Total surface area of given cube of side a=6a2=6×272 cm2 =4374 cm2
Curved surface area of a cylinder of radius "R" and height "h" =2πRhHence, Curved surface area of the given cylinder =2×227×r×8=704
∴r=14 cm
Radius of the base of the cylinder is 14 cm
Given, curved surface varea of cone =1760 sq.cm and radius =14 cm
Curved surface area of a cylinder of radius "R" and height "h" =2πRh
Hence, curved surface area of the given cylinder =2×227×14×h=1760sq.cm
∴h=20 cm
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