Four cubes of dimensions 3 cm × 3 cm × 3 cm are placed side by side, the length of resulting cuboid is:
A
6 cm
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B
4 cm
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C
9 cm
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D
12 cm
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Solution
The correct option is D 12 cm After joining the four cubes of side 3 cm, we get a cuboid as shown in the figure. Length of the resulting cuboid is 3 + 3 + 3 + 3 = 3 × 4 = 12 cm.