Question

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

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

Given :

Two cubes of 4 cm are fixed together.

So, the new solid formed is cuboid

length of the cuboid = 4 + 4 = 8cm

breadth of the cuboid = 4 cm

height of the cubiod = 4cm

To find :

Total surface area ?

Solution:

Total surface area of cuboid = 2(lb+bh+lh) unit²

= 2( 8×4 + 4×4 + 8×4 ) cm²

= 2 ( 32 + 16 + 32 ) cm²

= 2 × 80 cm²

= 160 cm²

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