Question

A cube has volume 729 cm3. Find the area of its base.​

Answer 1

Answer:

Using the formulas

A=6a2

V=a3

Solving forA

A=6V⅔=6·729⅔≈486cm²

Answer 2

Answer :

81 cm²

Solution :

• Given : Volume = 729 cm³
• To find : Base Area = ?

Here ,

It is given that the volume of the cube is 729 cm³ .

Thus ,

=> Volume = 729

{ Volume of cube = Side³ }

=> Side³ = 729

=> Side³ = 9³

=> Side = 9

Now ,

The Base Area the cube will be given as ;

=> Base Area = Side²

=> Base Area = 9²

=> Bade Area = 81 cm²

Hence ,

Area of the base of the given cube is 81 cm² .