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What is the length of the resulting solid if two identical cubes of side 7 cm are joined end to end?

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in Mathematics - Class 10 by (506k points)
What is the length of the resulting solid if two identical cubes of side 7 cm are joined end to end?

(a) 26 cm

(b) 16 cm

(c) 21 cm

(d) 14 cm

I have been asked this question during an interview.

I need to ask this question from Surface Area and Volume of Combination of Solids topic in chapter Surface Area and Volumes of Mathematics – Class 10

1 Answer

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Best answer
The correct choice is (d) 14 cm

Explanation: Length of resulting cuboid = 2 × side of the cube

= 2 × 7 cm

= 14 cm

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