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A cuboid of dimensions 10cm by 2cm by 2cm is divided into 5 cubes of edge 2 cm. Find the ratio of the total surface area of the cuboid and cube |
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Answer» Dimensions of Cuboid = 10 by 2 by 2 cm THEREFORE, Volume of Cuboid = 10 x 2 x 2 = 40 cm³ SINCE it is divided into 5 cubes, Volume of each Cube, l³ = 40/5 = 8 cm³ Therefore, LENGTH of each side of cube, l = ³√8 = 2 cm Now, Total Surface Area of Cuboid = 2(lb + bh + hl) TSA = 2(10x2 + 2X2 + 2x10) = 2(20 + 4 + 20) = 2(44) .. |
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