A) 8 cm
B) 10 cm
C) 9cm
D) 6cm
Correct Answer: D
Solution :
Let edge of the new cube = x cm. Volume of the newly formed figure (cube) = sum of volume of smaller cubes. i.e., \[{{(x)}^{3}}\,={{(3)}^{3}}+{{(4)}^{3}}+{{(5)}^{3}}=27\,+64+125=216\] \[\Rightarrow \,\,x=6\,cm\]You need to login to perform this action.
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