Question

The total surface area of
a cube is 216 cm²
Find its edge​

Answer 1

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Answer 2

Question given :

The total surface area of a cube is 216 cm² Find its edge .

Given :

The total surface area of a cube is 216 cm²

To find :

The length of its edge

Formula used :

Total surface Area of cube = 6a²

Solution :

We know that ,

= 6a² = 216

= a² = 216 / 6

= a² = 36

= a = √36

= a = 6 cm

So the length of edge is 6 cm