Question

Total surface area of a cube is 216 cm^2. Find its CSA and its perimeter

Answer 1

Total surface area = 216 cm²

Let the side of the cube = a  

Thus 6a² = 216

⇒ a² = 216/6

⇒ a² = 36

⇒ a = √36  

⇒ a = 6 cm

Volume = a³ cm³ = 6³ cm³ = 216 cm³

Answer 2

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