find the length of the side of a cube whose total surface area is 216 CM square
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The length of the side of a cube is 6cm.
We know that for a cube of side 's' cm, then its total surface area is given as:
6 × s² cm²
Given that total surface area is 216 cm²
⇒6 × s² = 216
⇒ s² = 216/6 = 36
⇒ s = ± 6 cm
As side of a cube cannot be negative, so we reject -6cm.
This side is 6cm.
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