waecmaths question:
The volume of a cube is 512cm3.Find the length of its side
Option A:
6cm
Option B:
7cm
Option C:
8cm
Option D:
9cm
waecmaths solution:
$\begin{align} & \text{Volume of a cube }={{l}^{3}} \\ & {{l}^{3}}=512c{{m}^{3}} \\ & l=\sqrt{512c{{m}^{3}}}=8cm \\\end{align}$
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