Question

cube is 54 872am
10 the volume of
Find the length of its edge​

Answer 1

Here is your answer mate...

Since the surface area of a cube comprises six identical squares, the S.A. of a cube with edge length a is:

SA=6a2

We know the SA is 54 cm 2 and we want to find a, so we plug in what we know and solve for what we need:54=6a2

⟹546=a2

⟹9=a2

⟹±3=a

However, the length of the edge of a cube can’t be negative, so a=3 cm.

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