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The surface area of cylinder with radius equal to 4 and height equal to 9 is 326.725 square units.
Surface area of a sphere. Area = 4 pi r^2 Area = 4 * pi *(0.00002)^2 = 5.0265 X 10^-9 ( whatever units ) ----------------------------------------------
Surface area: (2*0.5*3*4)+(3*9)+(4*9)+(5*9) = 120 square inches
If you mean a rectangular cuboid then they work out as follows:- Volume: 4.2*4*9 = 151.2 cubic cm Surface area: 2(4*4.2)+2(4.2*9)+2(4*9) = 181.2 square cm
The surface area of a 9 centimeter cube is: 486 cm2