Question

8.
Two cubes of side 4 cm are fixed together. Find the total surface area of the new
solid formed.



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Answer 1

Answer:

The total surface area of the new solid formed (cuboid) is 160 cm².

Step-by-step explanation:

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