Two cubes of side 4 cm are fixed together. Find the total surface area of the new
solid formed.
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Answer:
160sq cm
Step-by-step explanation:
When the two cubes are fixed together, the resulting solid is a cuboid.
Length of the cuboid, = 2 × edge of the cube = 2*4 = 8 cm
Breadth of the cube = 1 × edge of the cube = 4 cm
Height of the cube = 1 × edge of the cube = 4 cm
Total surface area of the cuboid = 2*(LB + BL + LH)
⇒ 2*(8*4 + 4*4 + 4*8)
⇒ 2*(32 + 16 + 32)
⇒ 2*80
⇒ 160 sq cm
So, the total surface area of the cuboid is 160 sq cm
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