Two cubes each of volume 64 cubic cm are joined end to end. Find the total surface area of the resulting cuboid?

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Sreedevi Addepalli

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T.S.A of cuboid = 2 (lb+bh+lh);Given volume of the cube = 64 cubic cm. From this we can find the length of the side of the cube by taking the cube root of 64 and it is equal to 4. Now we have length of the cube = breadth of the cube = height of the cube = 4cm. On joining 2 such cubes, we get length...
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T.S.A of cuboid = 2 (lb+bh+lh);Given volume of the cube = 64 cubic cm. From this we can find the length of the side of the cube by taking the cube root of 64 and it is equal to 4. Now we have length of the cube = breadth of the cube = height of the cube = 4cm. On joining 2 such cubes, we get length of the cuboid = 4+4 =8 cm; breadth and height remain same as we are joining the two cubes side by side. On substituting the values, we get T.S.A = 160 square cm read less
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