Question

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Answer 1

When 3 cubes joined together then the resulting figure will be cuboid.....having length of (6+6+6=18 cm), the width and the height of cuboid will be same as that of individual cubes therefore surface area of cuboid will be

2(Lb+bh+hl)
=2(18*6+6*6+6*18)
=2(108+36+108)
=2(252)
504 cm2