Question

find the volume of a cubical box whose surface area is 486cm square​

Answer 1

Answer:

729 cm³

Step-by-step explanation:

Surface area of cube is 6S² where, S is side of cube.

So,

• 6S²= 486
• S² = 486/6 = 81
• S =√81
• S = 9

The side of cube S is 9cm.

The volume is given by,

• V = S³
• V = 9³ = 729 cm³

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Answer 2

Answer:

729

Step-by-step explanation:

surface area=486

divide it by 6a2

a2=486/6

a2=81

a=9

volume of cone=a3

9×9×9=729