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1. 2 cubes each of volume 64 cm are joined end to end. Find thesurface area of the resulting cuboid. |
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Answer» n the figure above two CUBES are joined end to end such that a cuboid is formed.Volume of cube = 64 cm3 We KNOW that, Side of cube = = = 4 cm Side of cube = 4 cm Now these two cubes when joined, we can see from the figure that, their lengths are ADDED and breadth and height remains the same. Length of new cuboid = 8 cm Height of new cuboid = 4 cm Width of new cuboid = 4 cm We know that: Surface Area = 2(lb + lh + bh) Surface Area = 2(8 x 4 + 8 x 4 + 4 x 4) = 2 x 80 = 160 cm2Step-by-step explanation: |
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