Question

Find the surface area of the cube if it's volume is 729

Answer 1

There are some mistakes in your question. The proper question is :-

Find the surface area of the cube if its volume is 729cm³

Answer :-

Given : Volume (V) of a cube = 729cm³

To find : Surface Area (SA) of the cube

Solution :-

First, we will find the side of the cube by the formula of Volume of Cube

Volume of cube = side³

☛ 729 = side³

☛ side = $\sqrt[3]{729}$

∴ $\boxed{\rm{9\:cm}}$

Now, we will find the Surface Area of the cube

Surface Area of cube = 6 × side²

☛ SA = 6 × 9²

☛ SA = 6 × 81

☛ $\large{\boxed{\boxed{\rm{Surface\:area\:=\:486\:cm^2}}}}$