Question

Find the cubical box whose surface area is 486cm2

Answer 1

Answer:

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We know that surface area of cube is 6l

2

.

It is given that the surface area of cube is 486 cm

2

, therefore,

486=6l

2

⇒l

2

=

6

486

⇒l

2

=81

⇒l=

81

⇒l=9

Now, the volume of the cube is l

3

, therefore, the volume with length l=9 is:

V=9

3

=729

Hence, the volume of the cube is 729 cm

3

.

Answer 2

Answer:

Hope it helps you...↓↓↓

Step-by-step explanation:

Surface area=486cm²

So, each side={√(486/6)}cm=(√81)cm=9cm

Hence, the each edge measures 9cm whose surface area is 486cm².