Question

Q4. Three cubes each of side 12 cm are joined end to end. Then the surface area of the
resulting cuboid is:​

Answer 1

Given:-

• Three cubes each of side 12 cm are joined end to end.

To find:-

• The total surface area of the resulting cuboid.

Solution:-

Here,

• length (l) = 12 + 12 + 12 = 36 cm
• Breath (b) = 12 cm
• height (h) = 12 cm

According to the question,

→ T.S.A of cuboid = 2(lb + bh + hl)

→ 2(36 × 12 + 12 × 12 + 12 × 36)

→ 2(432 + 144 + 432)

→ 2 × 1008

→ 2016 cm²

Hence,

• the surface area of the resulting cuboid is 2016 cm².

Answer 2

Answer:

for answer see the image

Step-by-step explanation:

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