two cubes of side 4cm are
together find the total surface area of the new solid form
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32 centimetre square
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SOLUTION :
Given :
Side of cube = 4 cm
On joining 2 cubes we get a cuboid whose
Length,l = 4+ 4 = 8 cm
Height ,h = 4 cm
Breadth ,b = 4 cm
Required surface area of the resulting cuboid = surface area of new cuboid
= 2( lb + bh + hl)
= 2 ( 8 × 4 + 4 × 4 + 4 × 8)
= 2 ( 32 + 16 + 32)
= 2 × 80
= 160 cm².
Hence, the total surface area of the new solid form is 160 cm².
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