Three cubes of metal with edges 3cm 4cm and 5cm respectively are melted to form a single cube .find the lateral surface area of the new cube so formed
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cubes with edge 5,3,4
volume of eah cube will be
=(5×5×5),(4×4×4), (3×3×3)
=125,64,27
total volume will be 125+64+27=216
this volume will be of new formed cube
side of cube =cube root of volume
= 6
lateral surface area of cube is 4×(side×side)
=4×(6×6) =4×36 =144
volume of eah cube will be
=(5×5×5),(4×4×4), (3×3×3)
=125,64,27
total volume will be 125+64+27=216
this volume will be of new formed cube
side of cube =cube root of volume
= 6
lateral surface area of cube is 4×(side×side)
=4×(6×6) =4×36 =144
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